Class 9 Mathematics - Introduction to Polynomials - Definition of polynomial Medium Quiz

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कौन-सा व्यंजक (y) में बहुपद नहीं है?

Which expression is not a polynomial in (y)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{5}{y}+2\)

Step 1

Concept

In \(\frac{5}{y}\), the power of (y) is (-1). Due to the negative power, it is not a polynomial.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{5}{y}+2\). In \(\frac{5}{y}\), the power of (y) is (-1). Due to the negative power, it is not a polynomial.

Step 3

Exam Tip

\(\frac{5}{y}\) में (y) की घात (-1) होती है। ऋणात्मक घात के कारण यह बहुपद नहीं है।

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व्यंजक \(8x^6-3x^4+x-10\) की घात क्या है?

What is the degree of \(8x^6-3x^4+x-10\)?

Explanation opens after your attempt
Correct Answer

D. (6)

Step 1

Concept

The degree of a polynomial is given by the highest power of the variable. Here the highest power is (6).

Step 2

Why this answer is correct

The correct answer is D. (6). The degree of a polynomial is given by the highest power of the variable. Here the highest power is (6).

Step 3

Exam Tip

बहुपद की घात सबसे बड़ी चर-घात से मिलती है। यहाँ सबसे बड़ी घात (6) है।

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(p(x)=0) के लिए सही कथन कौन-सा है?

Which statement is correct for (p(x)=0)?

Explanation opens after your attempt
Correct Answer

C. यह शून्य बहुपद है और इसकी घात परिभाषित नहीं होतीIt is the zero polynomial and its degree is not defined

Step 1

Concept

(p(x)=0) is called the zero polynomial. Its degree is not defined.

Step 2

Why this answer is correct

The correct answer is C. यह शून्य बहुपद है और इसकी घात परिभाषित नहीं होती / It is the zero polynomial and its degree is not defined. (p(x)=0) is called the zero polynomial. Its degree is not defined.

Step 3

Exam Tip

(p(x)=0) को शून्य बहुपद कहते हैं। इसकी घात परिभाषित नहीं होती।

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किस व्यंजक में गुणांक अपरिमेय है लेकिन व्यंजक फिर भी बहुपद है?

In which expression is the coefficient irrational but the expression is still a polynomial?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{3}x^2-2x+5\)

Step 1

Concept

\(\sqrt{3}\) is a real coefficient and is allowed. The powers of the variable are (2), (1), and (0), so it is a polynomial.

Step 2

Why this answer is correct

The correct answer is B. \(\sqrt{3}x^2-2x+5\). \(\sqrt{3}\) is a real coefficient and is allowed. The powers of the variable are (2), (1), and (0), so it is a polynomial.

Step 3

Exam Tip

\(\sqrt{3}\) वास्तविक गुणांक है और स्वीकार्य है। चर की घातें (2), (1) और (0) हैं इसलिए यह बहुपद है।

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कौन-सा व्यंजक (x) में द्विघात बहुपद है?

Which expression is a quadratic polynomial in (x)?

Explanation opens after your attempt
Correct Answer

A. \(5x^2-4x+9\)

Step 1

Concept

A quadratic polynomial has degree (2). The highest power in \(5x^2-4x+9\) is (2).

Step 2

Why this answer is correct

The correct answer is A. \(5x^2-4x+9\). A quadratic polynomial has degree (2). The highest power in \(5x^2-4x+9\) is (2).

Step 3

Exam Tip

द्विघात बहुपद की घात (2) होती है। \(5x^2-4x+9\) की सबसे बड़ी घात (2) है।

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\(3x^5+0x^7-2x+4\) की घात क्या होगी?

What will be the degree of \(3x^5+0x^7-2x+4\)?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

\(0x^7\) is a zero term and does not determine the degree. The highest non-zero power is (5).

Step 2

Why this answer is correct

The correct answer is C. (5). \(0x^7\) is a zero term and does not determine the degree. The highest non-zero power is (5).

Step 3

Exam Tip

\(0x^7\) शून्य पद है और घात तय नहीं करता। सबसे बड़ी अशून्य घात (5) है।

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कौन-सा व्यंजक बहुपद नहीं है क्योंकि चर की घात भिन्न है?

Which expression is not a polynomial because the variable has a fractional power?

Explanation opens after your attempt
Correct Answer

D. (x^{23}+4)

Step 1

Concept

In \(x^{2/3}\), the power is \(\frac{2}{3}\), which is not an integer. Polynomial powers must be non-negative integers.

Step 2

Why this answer is correct

The correct answer is D. \(x^{2 / 3}+4\). In \(x^{2/3}\), the power is \(\frac{2}{3}\), which is not an integer. Polynomial powers must be non-negative integers.

Step 3

Exam Tip

\(x^{2/3}\) में घात \(\frac{2}{3}\) है जो पूर्णांक नहीं है। बहुपद में घातें शून्य या धनात्मक पूर्णांक होनी चाहिए।

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कौन-सा बहुपद घन बहुपद है?

Which polynomial is a cubic polynomial?

Explanation opens after your attempt
Correct Answer

A. \(4x^3-6x+1\)

Step 1

Concept

A cubic polynomial has degree (3). The highest power in \(4x^3-6x+1\) is (3).

Step 2

Why this answer is correct

The correct answer is A. \(4x^3-6x+1\). A cubic polynomial has degree (3). The highest power in \(4x^3-6x+1\) is (3).

Step 3

Exam Tip

घन बहुपद की घात (3) होती है। \(4x^3-6x+1\) में सबसे बड़ी घात (3) है।

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(12) को किस प्रकार का बहुपद माना जाता है?

What type of polynomial is (12) considered?

Explanation opens after your attempt
Correct Answer

C. स्थिर बहुपदConstant polynomial

Step 1

Concept

(12) has no variable, so it is a constant polynomial. A non-zero constant polynomial has degree (0).

Step 2

Why this answer is correct

The correct answer is C. स्थिर बहुपद / Constant polynomial. (12) has no variable, so it is a constant polynomial. A non-zero constant polynomial has degree (0).

Step 3

Exam Tip

(12) में कोई चर नहीं है इसलिए यह स्थिर बहुपद है। शून्य से अलग स्थिर बहुपद की घात (0) होती है।

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किस व्यंजक में (x) हर में होने के कारण बहुपद नहीं है?

Which expression is not a polynomial because (x) is in the denominator?

Explanation opens after your attempt
Correct Answer

B. \(\frac{x+5}{x}\)

Step 1

Concept

\(\frac{x+5}{x}=1+\frac{5}{x}\) contains \(\frac{5}{x}\), whose power is (-1). So it is not a polynomial.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{x+5}{x}\). \(\frac{x+5}{x}=1+\frac{5}{x}\) contains \(\frac{5}{x}\), whose power is (-1). So it is not a polynomial.

Step 3

Exam Tip

\(\frac{x+5}{x}=1+\frac{5}{x}\) में \(\frac{5}{x}\) की घात (-1) है। इसलिए यह बहुपद नहीं है।

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(p(t)=2t-4-7t-2+3) में कौन-सा पद घात तय करता है?

In (p(t)=2t-4-7t-2+3), which term determines the degree?

Explanation opens after your attempt
Correct Answer

C. \(2t^4\)

Step 1

Concept

The degree is determined by the non-zero term with the highest power. Here \(2t^4\) has the highest power (4).

Step 2

Why this answer is correct

The correct answer is C. \(2t^4\). The degree is determined by the non-zero term with the highest power. Here \(2t^4\) has the highest power (4).

Step 3

Exam Tip

घात सबसे बड़ी चर-घात वाले अशून्य पद से तय होती है। यहाँ \(2t^4\) में सबसे बड़ी घात (4) है।

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कौन-सा व्यंजक (z) में बहुपद है?

Which expression is a polynomial in (z)?

Explanation opens after your attempt
Correct Answer

C. \(3z^4-z^2+8\)

Step 1

Concept

In \(3z^4-z^2+8\), the powers of (z) are (4), (2), and (0). All powers are valid.

Step 2

Why this answer is correct

The correct answer is C. \(3z^4-z^2+8\). In \(3z^4-z^2+8\), the powers of (z) are (4), (2), and (0). All powers are valid.

Step 3

Exam Tip

\(3z^4-z^2+8\) में (z) की घातें (4), (2) और (0) हैं। सभी घातें मान्य हैं।

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बहुपद \(5x^3-2x^2+7x-1\) में कितने पद हैं?

How many terms are there in the polynomial \(5x^3-2x^2+7x-1\)?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

It has four terms: \(5x^3\), \(-2x^2\), (7x), and (-1). Count terms with their signs.

Step 2

Why this answer is correct

The correct answer is C. (4). It has four terms: \(5x^3\), \(-2x^2\), (7x), and (-1). Count terms with their signs.

Step 3

Exam Tip

इसमें \(5x^3\), \(-2x^2\), (7x) और (-1) चार पद हैं। पदों को चिन्ह सहित गिनें।

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यदि किसी बहुपद की सबसे बड़ी घात (4) है, तो उसकी घात क्या होगी?

If the highest power of a polynomial is (4), what will be its degree?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

The degree of a polynomial is its highest variable power. Therefore, the degree will be (4).

Step 2

Why this answer is correct

The correct answer is C. (4). The degree of a polynomial is its highest variable power. Therefore, the degree will be (4).

Step 3

Exam Tip

बहुपद की घात उसकी सबसे बड़ी चर-घात ही होती है। इसलिए घात (4) होगी।

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कौन-सा व्यंजक \(\sqrt{x}\) के कारण बहुपद नहीं है?

Which expression is not a polynomial because of \(\sqrt{x}\)?

Explanation opens after your attempt
Correct Answer

C. \(\sqrt{x}+2x\)

Step 1

Concept

\(\sqrt{x}=x^{1/2}\), and \(\frac{1}{2}\) is not an integer power. Hence it is not a polynomial.

Step 2

Why this answer is correct

The correct answer is C. \(\sqrt{x}+2x\). \(\sqrt{x}=x^{1/2}\), and \(\frac{1}{2}\) is not an integer power. Hence it is not a polynomial.

Step 3

Exam Tip

\(\sqrt{x}=x^{1/2}\) होता है और \(\frac{1}{2}\) पूर्णांक घात नहीं है। इसलिए यह बहुपद नहीं है।

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कौन-सा बहुपद रैखिक है?

Which polynomial is linear?

Explanation opens after your attempt
Correct Answer

B. (6x-11)

Step 1

Concept

A linear polynomial has degree (1). In (6x-11), the highest power is (1).

Step 2

Why this answer is correct

The correct answer is B. (6x-11). A linear polynomial has degree (1). In (6x-11), the highest power is (1).

Step 3

Exam Tip

रैखिक बहुपद की घात (1) होती है। (6x-11) में सबसे बड़ी घात (1) है।

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\(x^2+3x^{1/3}+4\) बहुपद क्यों नहीं है?

Why is \(x^2+3x^{1/3}+4\) not a polynomial?

Explanation opens after your attempt
Correct Answer

C. क्योंकि (x^{13}) की घात पूर्णांक नहीं है / Because the power in \(x^{1 / 3}\) is not an integer

Step 1

Concept

In a polynomial, powers of the variable must be integers. The power in \(x^{1/3}\) is not an integer.

Step 2

Why this answer is correct

The correct answer is C. क्योंकि \(x^{1 / 3}\) की घात पूर्णांक नहीं है / Because the power in \(x^{1 / 3}\) is not an integer. In a polynomial, powers of the variable must be integers. The power in \(x^{1/3}\) is not an integer.

Step 3

Exam Tip

बहुपद में चर की घातें पूर्णांक होनी चाहिए। \(x^{1/3}\) की घात पूर्णांक नहीं है।

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किस विकल्प में घात (0) का बहुपद है?

Which option is a polynomial of degree (0)?

Explanation opens after your attempt
Correct Answer

C. (13)

Step 1

Concept

A non-zero constant polynomial has degree (0). (13) is such a constant polynomial.

Step 2

Why this answer is correct

The correct answer is C. (13). A non-zero constant polynomial has degree (0). (13) is such a constant polynomial.

Step 3

Exam Tip

शून्य से अलग स्थिर बहुपद की घात (0) होती है। (13) ऐसा स्थिर बहुपद है।

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कौन-सा व्यंजक (x) में बहुपद है यदि (a) को स्थिर माना जाए?

Which expression is a polynomial in (x) if (a) is treated as a constant?

Explanation opens after your attempt
Correct Answer

A. \(ax^2+3x-1\)

Step 1

Concept

Treating (a) as a constant, \(ax^2\) has (x)-power (2). All powers of (x) are non-negative integers.

Step 2

Why this answer is correct

The correct answer is A. \(ax^2+3x-1\). Treating (a) as a constant, \(ax^2\) has (x)-power (2). All powers of (x) are non-negative integers.

Step 3

Exam Tip

(a) को स्थिर मानने पर \(ax^2\) में (x) की घात (2) है। सभी (x) घातें शून्य या धनात्मक पूर्णांक हैं।

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\(4x^2+\frac{3}{7}x-6\) के बारे में सही कथन कौन-सा है?

Which statement is correct about \(4x^2+\frac{3}{7}x-6\)?

Explanation opens after your attempt
Correct Answer

B. यह बहुपद है क्योंकि चर की घातें मान्य हैंIt is a polynomial because the variable powers are valid

Step 1

Concept

Fractional coefficients are allowed. Here the powers of the variable are (2), (1), and (0).

Step 2

Why this answer is correct

The correct answer is B. यह बहुपद है क्योंकि चर की घातें मान्य हैं / It is a polynomial because the variable powers are valid. Fractional coefficients are allowed. Here the powers of the variable are (2), (1), and (0).

Step 3

Exam Tip

भिन्न गुणांक स्वीकार्य होते हैं। यहाँ चर की घातें (2), (1) और (0) हैं।

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कौन-सा व्यंजक (x) में बहुपद नहीं है लेकिन (x) के बिना स्थिर पद भी रखता है?

Which expression is not a polynomial in (x) but also has a constant term?

Explanation opens after your attempt
Correct Answer

C. \(x^{-2}+7\)

Step 1

Concept

The power in \(x^{-2}\) is negative, so it is not a polynomial. (7) is only a constant term, and the issue is the negative power.

Step 2

Why this answer is correct

The correct answer is C. \(x^{-2}+7\). The power in \(x^{-2}\) is negative, so it is not a polynomial. (7) is only a constant term, and the issue is the negative power.

Step 3

Exam Tip

\(x^{-2}\) की घात ऋणात्मक है इसलिए यह बहुपद नहीं है। (7) केवल स्थिर पद है और समस्या ऋणात्मक घात से है।

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\(9x^0-4x+2x^2\) को बहुपद मानने का मुख्य कारण क्या है?

What is the main reason \(9x^0-4x+2x^2\) is considered a polynomial?

Explanation opens after your attempt
Correct Answer

B. क्योंकि सभी (x)-घातें (0), (1), (2) हैंBecause all (x)-powers are (0), (1), (2)

Step 1

Concept

The power in \(x^0\) is (0), and \(x^0=1\) is considered. All powers are non-negative integers.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि सभी (x)-घातें (0), (1), (2) हैं / Because all (x)-powers are (0), (1), (2). The power in \(x^0\) is (0), and \(x^0=1\) is considered. All powers are non-negative integers.

Step 3

Exam Tip

\(x^0\) की घात (0) है और \(x^0=1\) माना जाता है। सभी घातें शून्य या धनात्मक पूर्णांक हैं।

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किस बहुपद की घात (2) नहीं है?

Which polynomial does not have degree (2)?

Explanation opens after your attempt
Correct Answer

C. \(6x^3-x+5\)

Step 1

Concept

The highest power in \(6x^3-x+5\) is (3). Therefore, its degree is not (2).

Step 2

Why this answer is correct

The correct answer is C. \(6x^3-x+5\). The highest power in \(6x^3-x+5\) is (3). Therefore, its degree is not (2).

Step 3

Exam Tip

\(6x^3-x+5\) की सबसे बड़ी घात (3) है। इसलिए इसकी घात (2) नहीं है।

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कौन-सा व्यंजक बहुपद है जिसमें \(x^2\) का पद गायब है?

Which expression is a polynomial in which the \(x^2\) term is missing?

Explanation opens after your attempt
Correct Answer

A. \(x^3+5x-2\)

Step 1

Concept

A polynomial need not contain every power. \(x^3+5x-2\) has powers (3), (1), and (0).

Step 2

Why this answer is correct

The correct answer is A. \(x^3+5x-2\). A polynomial need not contain every power. \(x^3+5x-2\) has powers (3), (1), and (0).

Step 3

Exam Tip

बहुपद में हर घात का पद होना जरूरी नहीं है। \(x^3+5x-2\) में घातें (3), (1) और (0) हैं।

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यदि (p(x)=3x-2-5), तो यह किस प्रकार का बहुपद है?

If (p(x)=3x-2-5), what type of polynomial is it?

Explanation opens after your attempt
Correct Answer

B. द्विघात द्विपदीQuadratic binomial

Step 1

Concept

Its degree is (2) and it has two terms. Therefore, it is a quadratic binomial.

Step 2

Why this answer is correct

The correct answer is B. द्विघात द्विपदी / Quadratic binomial. Its degree is (2) and it has two terms. Therefore, it is a quadratic binomial.

Step 3

Exam Tip

इसकी घात (2) है और इसमें दो पद हैं। इसलिए यह द्विघात द्विपदी है।

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कौन-सा कथन बहुपद की परिभाषा के अनुसार गलत है?

Which statement is wrong according to the definition of a polynomial?

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Correct Answer

C. चर की घातें ऋणात्मक हो सकती हैंPowers of the variable can be negative

Step 1

Concept

Negative powers are not allowed in a polynomial. Powers must be zero or positive integers.

Step 2

Why this answer is correct

The correct answer is C. चर की घातें ऋणात्मक हो सकती हैं / Powers of the variable can be negative. Negative powers are not allowed in a polynomial. Powers must be zero or positive integers.

Step 3

Exam Tip

बहुपद में ऋणात्मक घातें स्वीकार्य नहीं होतीं। घातें शून्य या धनात्मक पूर्णांक होनी चाहिए।

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\(2x^4+5x^2+1\) में कौन-सी घातें उपस्थित हैं?

Which powers are present in \(2x^4+5x^2+1\)?

Explanation opens after your attempt
Correct Answer

A. (4), (2), (0)

Step 1

Concept

The power of \(2x^4\) is (4), the power of \(5x^2\) is (2), and the constant (1) is treated as degree (0).

Step 2

Why this answer is correct

The correct answer is A. (4), (2), (0). The power of \(2x^4\) is (4), the power of \(5x^2\) is (2), and the constant (1) is treated as degree (0).

Step 3

Exam Tip

\(2x^4\) की घात (4), \(5x^2\) की घात (2), और (1) स्थिर पद की घात (0) मानी जाती है।

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कौन-सा व्यंजक बहुपद है लेकिन स्थिर बहुपद नहीं है?

Which expression is a polynomial but not a constant polynomial?

Explanation opens after your attempt
Correct Answer

C. (7x+3)

Step 1

Concept

(7x+3) contains the variable (x), so it is not a constant polynomial. Still, it is a polynomial because the power is (1).

Step 2

Why this answer is correct

The correct answer is C. (7x+3). (7x+3) contains the variable (x), so it is not a constant polynomial. Still, it is a polynomial because the power is (1).

Step 3

Exam Tip

(7x+3) में चर (x) है इसलिए यह स्थिर बहुपद नहीं है। फिर भी घात (1) होने से यह बहुपद है।

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कौन-सा विकल्प (x) में बहुपद नहीं है क्योंकि चर मूल के नीचे है?

Which option is not a polynomial in (x) because the variable is under a root?

Explanation opens after your attempt
Correct Answer

C. \(\sqrt{x^2}+3\)

Step 1

Concept

\(\sqrt{x^2}\) is not treated as a polynomial term in the usual class (9) definition. If the variable is under a root, it is not considered a polynomial.

Step 2

Why this answer is correct

The correct answer is C. \(\sqrt{x^2}+3\). \(\sqrt{x^2}\) is not treated as a polynomial term in the usual class (9) definition. If the variable is under a root, it is not considered a polynomial.

Step 3

Exam Tip

\(\sqrt{x^2}\) को सामान्य रूप से बहुपद पद की तरह नहीं लिया जाता। कक्षा (9) में चर मूल के अंदर हो तो उसे बहुपद नहीं मानते।

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(p(x)=7x-4) की घात और प्रकार क्या है?

What are the degree and type of (p(x)=7x-4)?

Explanation opens after your attempt
Correct Answer

B. घात (1), रैखिकDegree (1), linear

Step 1

Concept

The highest power in (7x-4) is (1). Therefore, it is a linear polynomial.

Step 2

Why this answer is correct

The correct answer is B. घात (1), रैखिक / Degree (1), linear. The highest power in (7x-4) is (1). Therefore, it is a linear polynomial.

Step 3

Exam Tip

(7x-4) में सबसे बड़ी घात (1) है। इसलिए यह रैखिक बहुपद है।

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कौन-सा व्यंजक (x) में बहुपद है और (x) की सबसे बड़ी घात (5) है?

Which expression is a polynomial in (x) and has highest power (5)?

Explanation opens after your attempt
Correct Answer

A. \(x^5-2x^2+6\)

Step 1

Concept

In \(x^5-2x^2+6\), all powers are valid and the highest power is (5). So it is a polynomial of degree (5).

Step 2

Why this answer is correct

The correct answer is A. \(x^5-2x^2+6\). In \(x^5-2x^2+6\), all powers are valid and the highest power is (5). So it is a polynomial of degree (5).

Step 3

Exam Tip

\(x^5-2x^2+6\) में सभी घातें मान्य हैं और सबसे बड़ी घात (5) है। इसलिए यह घात (5) का बहुपद है।

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कौन-सा बहुपद केवल एक पद वाला है?

Which polynomial has only one term?

Explanation opens after your attempt
Correct Answer

B. \(4x^7\)

Step 1

Concept

A polynomial with only one term is called a monomial. \(4x^7\) has only one term.

Step 2

Why this answer is correct

The correct answer is B. \(4x^7\). A polynomial with only one term is called a monomial. \(4x^7\) has only one term.

Step 3

Exam Tip

केवल एक पद वाले बहुपद को एकपदी कहते हैं। \(4x^7\) में केवल एक पद है।

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\(x^2-9\) की सही पहचान कौन-सी है?

Which is the correct identification of \(x^2-9\)?

Explanation opens after your attempt
Correct Answer

B. द्विघात द्विपदीQuadratic binomial

Step 1

Concept

\(x^2-9\) has degree (2) and two terms. Therefore, it is a quadratic binomial.

Step 2

Why this answer is correct

The correct answer is B. द्विघात द्विपदी / Quadratic binomial. \(x^2-9\) has degree (2) and two terms. Therefore, it is a quadratic binomial.

Step 3

Exam Tip

\(x^2-9\) की घात (2) है और इसमें दो पद हैं। इसलिए यह द्विघात द्विपदी है।

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कौन-सा व्यंजक बहुपद नहीं है क्योंकि इसमें \(x^{-4}\) है?

Which expression is not a polynomial because it contains \(x^{-4}\)?

Explanation opens after your attempt
Correct Answer

B. \(5x^{-4}+2x\)

Step 1

Concept

The power in \(x^{-4}\) is negative. Negative powers are not allowed in a polynomial.

Step 2

Why this answer is correct

The correct answer is B. \(5x^{-4}+2x\). The power in \(x^{-4}\) is negative. Negative powers are not allowed in a polynomial.

Step 3

Exam Tip

\(x^{-4}\) की घात ऋणात्मक है। बहुपद में ऋणात्मक घातें स्वीकार्य नहीं होतीं।

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किस विकल्प में (x) में बहुपद और उसकी घात दोनों सही हैं?

Which option correctly gives a polynomial in (x) and its degree?

Explanation opens after your attempt
Correct Answer

A. \(x^3+2x\), घात (3)\(x^3+2x\), degree (3)

Step 1

Concept

In \(x^3+2x\), the powers are (3) and (1). So it is a polynomial and its degree is (3).

Step 2

Why this answer is correct

The correct answer is A. \(x^3+2x\), घात (3) / \(x^3+2x\), degree (3). In \(x^3+2x\), the powers are (3) and (1). So it is a polynomial and its degree is (3).

Step 3

Exam Tip

\(x^3+2x\) में घातें (3) और (1) हैं। इसलिए यह बहुपद है और इसकी घात (3) है।

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कौन-सा बहुपद चार पदों वाला है?

Which polynomial has four terms?

Explanation opens after your attempt
Correct Answer

B. \(2x^3-x^2+x-6\)

Step 1

Concept

\(2x^3-x^2+x-6\) has four terms. Separate terms by plus or minus signs.

Step 2

Why this answer is correct

The correct answer is B. \(2x^3-x^2+x-6\). \(2x^3-x^2+x-6\) has four terms. Separate terms by plus or minus signs.

Step 3

Exam Tip

\(2x^3-x^2+x-6\) में चार पद हैं। पदों को जोड़ या घटाव के चिन्ह से अलग करें।

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\(6x^2-5x+0\) की घात क्या है?

What is the degree of \(6x^2-5x+0\)?

Explanation opens after your attempt
Correct Answer

C. (2)

Step 1

Concept

The zero constant term does not affect the degree. The highest power is (2).

Step 2

Why this answer is correct

The correct answer is C. (2). The zero constant term does not affect the degree. The highest power is (2).

Step 3

Exam Tip

शून्य स्थिर पद घात को प्रभावित नहीं करता। सबसे बड़ी घात (2) है।

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कौन-सा व्यंजक (x) में बहुपद है हालांकि उसमें \(x^3\) का पद नहीं है?

Which expression is a polynomial in (x) although it has no \(x^3\) term?

Explanation opens after your attempt
Correct Answer

A. \(x^4+x^2+1\)

Step 1

Concept

A missing power does not stop an expression from being a polynomial. In \(x^4+x^2+1\), all present powers are valid.

Step 2

Why this answer is correct

The correct answer is A. \(x^4+x^2+1\). A missing power does not stop an expression from being a polynomial. In \(x^4+x^2+1\), all present powers are valid.

Step 3

Exam Tip

किसी घात का पद गायब होना बहुपद बनने से नहीं रोकता। \(x^4+x^2+1\) में सभी उपस्थित घातें मान्य हैं।

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बहुपद की परिभाषा में चर की घात कैसी होनी चाहिए?

According to the definition of a polynomial, how should the power of the variable be?

Explanation opens after your attempt
Correct Answer

B. शून्य या धनात्मक पूर्णांकZero or positive integer

Step 1

Concept

In a polynomial, the powers of the variable are zero or positive integers. This is the most important condition.

Step 2

Why this answer is correct

The correct answer is B. शून्य या धनात्मक पूर्णांक / Zero or positive integer. In a polynomial, the powers of the variable are zero or positive integers. This is the most important condition.

Step 3

Exam Tip

बहुपद में चर की घातें शून्य या धनात्मक पूर्णांक होती हैं। यही सबसे जरूरी शर्त है।

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कौन-सा व्यंजक बहुपद है जिसमें स्थिर पद ऋणात्मक है?

Which expression is a polynomial with a negative constant term?

Explanation opens after your attempt
Correct Answer

A. \(x^2+3x-8\)

Step 1

Concept

A negative constant term does not prevent an expression from being a polynomial. All powers in \(x^2+3x-8\) are valid.

Step 2

Why this answer is correct

The correct answer is A. \(x^2+3x-8\). A negative constant term does not prevent an expression from being a polynomial. All powers in \(x^2+3x-8\) are valid.

Step 3

Exam Tip

ऋणात्मक स्थिर पद होना बहुपद बनने में बाधा नहीं है। \(x^2+3x-8\) की सभी घातें मान्य हैं।

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(p(x)=2x-3+5x-2-x+4) की सही पहचान कौन-सी है?

Which is the correct identification of (p(x)=2x-3+5x-2-x+4)?

Explanation opens after your attempt
Correct Answer

B. घन चार-पदी बहुपदCubic four-term polynomial

Step 1

Concept

Its degree is (3) and it has four terms. Therefore, it is a cubic four-term polynomial.

Step 2

Why this answer is correct

The correct answer is B. घन चार-पदी बहुपद / Cubic four-term polynomial. Its degree is (3) and it has four terms. Therefore, it is a cubic four-term polynomial.

Step 3

Exam Tip

इसकी घात (3) है और इसमें चार पद हैं। इसलिए यह घन चार-पदी बहुपद है।

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किस व्यंजक में (x) की घातें (5), (3) और (0) हैं?

In which expression are the powers of (x) (5), (3), and (0)?

Explanation opens after your attempt
Correct Answer

A. \(x^5+2x^3-7\)

Step 1

Concept

In \(x^5+2x^3-7\), the powers of (x) are (5), (3), and (0) for the constant term.

Step 2

Why this answer is correct

The correct answer is A. \(x^5+2x^3-7\). In \(x^5+2x^3-7\), the powers of (x) are (5), (3), and (0) for the constant term.

Step 3

Exam Tip

\(x^5+2x^3-7\) में (x) की घातें (5), (3) और स्थिर पद के लिए (0) हैं।

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कौन-सा व्यंजक वास्तविक गुणांक वाला बहुपद है?

Which expression is a polynomial with real coefficients?

Explanation opens after your attempt
Correct Answer

A. \(2.5x^2-3x+1\)

Step 1

Concept

The decimal (2.5) is also a real coefficient. All powers of the variable are non-negative integers.

Step 2

Why this answer is correct

The correct answer is A. \(2.5x^2-3x+1\). The decimal (2.5) is also a real coefficient. All powers of the variable are non-negative integers.

Step 3

Exam Tip

दशमलव (2.5) भी वास्तविक गुणांक है। चर की सभी घातें शून्य या धनात्मक पूर्णांक हैं।

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\(x^2+\frac{1}{x}+4\) बहुपद क्यों नहीं है?

Why is \(x^2+\frac{1}{x}+4\) not a polynomial?

Explanation opens after your attempt
Correct Answer

B. क्योंकि इसमें \(\frac{1}{x}\) है जिसकी घात (-1) हैBecause it has \(\frac{1}{x}\), whose power is (-1)

Step 1

Concept

\(\frac{1}{x}=x^{-1}\). An expression with a negative power is not a polynomial.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि इसमें \(\frac{1}{x}\) है जिसकी घात (-1) है / Because it has \(\frac{1}{x}\), whose power is (-1). \(\frac{1}{x}=x^{-1}\). An expression with a negative power is not a polynomial.

Step 3

Exam Tip

\(\frac{1}{x}=x^{-1}\) होता है। ऋणात्मक घात वाला व्यंजक बहुपद नहीं होता।

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कौन-सा विकल्प बहुपद की सही उदाहरण-व्याख्या देता है?

Which option gives a correct example-explanation of a polynomial?

Explanation opens after your attempt
Correct Answer

A. \(x^2+1\) क्योंकि घातें (2) और (0) हैं\(x^2+1\) because powers are (2) and (0)

Step 1

Concept

In \(x^2+1\), the powers are (2) and (0), which are valid. The other options contain invalid powers.

Step 2

Why this answer is correct

The correct answer is A. \(x^2+1\) क्योंकि घातें (2) और (0) हैं / \(x^2+1\) because powers are (2) and (0). In \(x^2+1\), the powers are (2) and (0), which are valid. The other options contain invalid powers.

Step 3

Exam Tip

\(x^2+1\) में घातें (2) और (0) हैं जो मान्य हैं। बाकी विकल्पों में अमान्य घातें हैं।

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कौन-सा व्यंजक (x) में बहुपद है लेकिन (y) भी गुणांक की तरह शामिल है?

Which expression is a polynomial in (x) but includes (y) as a coefficient-like quantity?

Explanation opens after your attempt
Correct Answer

A. \(y x^3+2x-5\)

Step 1

Concept

With respect to (x), (y) can be treated like a coefficient. The powers of (x) are (3), (1), and (0).

Step 2

Why this answer is correct

The correct answer is A. \(y x^3+2x-5\). With respect to (x), (y) can be treated like a coefficient. The powers of (x) are (3), (1), and (0).

Step 3

Exam Tip

(x) के संदर्भ में (y) को गुणांक की तरह माना जा सकता है। (x) की घातें (3), (1) और (0) हैं।

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कौन-सा विकल्प \(x^3-2x+5\) की सही पहचान है?

Which option correctly identifies \(x^3-2x+5\)?

Explanation opens after your attempt
Correct Answer

C. यह घन त्रिपदी बहुपद हैIt is a cubic trinomial polynomial

Step 1

Concept

Its degree is (3) and it has three terms. Therefore, it is a cubic trinomial polynomial.

Step 2

Why this answer is correct

The correct answer is C. यह घन त्रिपदी बहुपद है / It is a cubic trinomial polynomial. Its degree is (3) and it has three terms. Therefore, it is a cubic trinomial polynomial.

Step 3

Exam Tip

इसकी घात (3) है और इसमें तीन पद हैं। इसलिए यह घन त्रिपदी बहुपद है।

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यदि (p(x)=0x-5+4x-2-3x+8), तो (p(x)) की घात क्या होगी?

If (p(x)=0x-5+4x-2-3x+8), what will be the degree of (p(x))?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

\(0x^5\) is a zero term, so it does not determine the degree. The highest non-zero power is (2).

Step 2

Why this answer is correct

The correct answer is B. (2). \(0x^5\) is a zero term, so it does not determine the degree. The highest non-zero power is (2).

Step 3

Exam Tip

\(0x^5\) शून्य पद है इसलिए घात तय नहीं करता। सबसे बड़ी अशून्य घात (2) है।

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कौन-सा व्यंजक बहुपद नहीं है क्योंकि चर घात में है?

Which expression is not a polynomial because the variable is in the exponent?

Explanation opens after your attempt
Correct Answer

B. \(2^x+x\)

Step 1

Concept

In a polynomial, the variable has fixed non-negative integer powers. In \(2^x\), the variable is in the exponent, so it is not a polynomial.

Step 2

Why this answer is correct

The correct answer is B. \(2^x+x\). In a polynomial, the variable has fixed non-negative integer powers. In \(2^x\), the variable is in the exponent, so it is not a polynomial.

Step 3

Exam Tip

बहुपद में चर की घात निश्चित शून्य या धनात्मक पूर्णांक होती है। \(2^x\) में चर घात में है इसलिए यह बहुपद नहीं है।

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यदि (p(x)=ax-3+2x-1) में (a=0) हो, तो बहुपद की घात क्या होगी?

If (a=0) in (p(x)=ax-3+2x-1), what will be the degree of the polynomial?

Explanation opens after your attempt
Correct Answer

C. (1)

Step 1

Concept

When (a=0), the \(x^3\) term disappears. The remaining polynomial (2x-1) has degree (1).

Step 2

Why this answer is correct

The correct answer is C. (1). When (a=0), the \(x^3\) term disappears. The remaining polynomial (2x-1) has degree (1).

Step 3

Exam Tip

(a=0) रखने पर \(x^3\) वाला पद हट जाता है। शेष बहुपद (2x-1) की घात (1) है।

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FAQs

Class 9 Mathematics Quiz FAQs

How many questions are in this quiz?

This level is designed for 50 active questions. Currently 50 questions are available for the selected class and difficulty.

Is there a timer in this quiz?

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Can I open each question separately?

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