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x square MCQ Questions for Class 9

x square se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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6 questions tagged with x square.

Question 1/6 Medium Mathematics Exploring Algebraic Identities Quadratic expressions Class 9 Level 75

\(5x^2-3x+9\) में \(x^2\) का गुणांक क्या है?

What is the coefficient of \(x^2\) in \(5x^2-3x+9\)?

Explanation opens after your attempt
Correct Answer

D. (5)

Step 1

Concept

The number attached to \(x^2\) is (5). Exam tip: identify the term and its coefficient separately.

Step 2

Why this answer is correct

The correct answer is D. (5). The number attached to \(x^2\) is (5). Exam tip: identify the term and its coefficient separately.

Step 3

Exam Tip

\(x^2\) के साथ लगा हुआ संख्या गुणांक (5) है। परीक्षा में पद और उसके गुणांक को अलग पहचानें।

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Question 2/6 Expert Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 62

( (x-2)(x+5)(x-7) ) में \(x^2\) का गुणांक क्या होगा?

What will be the coefficient of \(x^2\) in ( (x-2)(x+5)(x-7) )?

Explanation opens after your attempt
Correct Answer

A. (-4)

Step 1

Concept

In three linear factors, the coefficient of \(x^2\) is the sum of constants. Here (-2+5-7=-4).

Step 2

Why this answer is correct

The correct answer is A. (-4). In three linear factors, the coefficient of \(x^2\) is the sum of constants. Here (-2+5-7=-4).

Step 3

Exam Tip

तीन रैखिक गुणनखंडों में \(x^2\) का गुणांक स्थिर संख्याओं का योग होता है। यहाँ (-2+5-7=-4) है।

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Question 3/6 Hard Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 64

( (x+1)(x+2)(x+3) ) के प्रसार में \(x^2\) का गुणांक क्या है?

What is the coefficient of \(x^2\) in the expansion of ( (x+1)(x+2)(x+3) )?

Explanation opens after your attempt
Correct Answer

C. (6)

Step 1

Concept

For three linear factors, the coefficient of \(x^2\) is (1+2+3=6). Exam tip: you can also check by expanding the first two factors.

Step 2

Why this answer is correct

The correct answer is C. (6). For three linear factors, the coefficient of \(x^2\) is (1+2+3=6). Exam tip: you can also check by expanding the first two factors.

Step 3

Exam Tip

तीन रैखिक पदों में \(x^2\) का गुणांक (1+2+3=6) होता है। परीक्षा में पहले दो पदों को खोलकर भी जाँच सकते हैं।

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Question 4/6 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 66

( (3x+4)2 ) में \(x^2\) का गुणांक क्या है?

What is the coefficient of \(x^2\) in ( (3x+4)2 )?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

( (3x)2=9x-2 ). Exam tip: square the whole (3x).

Step 2

Why this answer is correct

The correct answer is C. (9). ( (3x)2=9x-2 ). Exam tip: square the whole (3x).

Step 3

Exam Tip

( (3x)2=9x-2 ) है। परीक्षा में (3x) का पूरा वर्ग लें।

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Question 5/6 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 66

\( x^2-49 \) को गुणनखंड रूप में लिखिए।

Write \( x^2-49 \) in factor form.

Explanation opens after your attempt
Correct Answer

B. ( (x+7)(x-7) )

Step 1

Concept

Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

Step 2

Why this answer is correct

The correct answer is B. ( (x+7)(x-7) ). Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

Step 3

Exam Tip

\(49=7^2\), इसलिए \(x^2-49=x^2-7^2\) है। परीक्षा में वर्ग पहचानना जरूरी है।

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Question 6/6 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 65

( (5x)2 ) का मान क्या है?

What is the value of ( (5x)2 )?

Explanation opens after your attempt
Correct Answer

C. \(25x^2\)

Step 1

Concept

( (5x)2=25x-2 ). Exam tip: square both the coefficient and the variable.

Step 2

Why this answer is correct

The correct answer is C. \(25x^2\). ( (5x)2=25x-2 ). Exam tip: square both the coefficient and the variable.

Step 3

Exam Tip

( (5x)2=25x-2 ) होता है। परीक्षा में गुणांक और चर दोनों का वर्ग करें।

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