Concept-wise Practice

quadratic-zeroes MCQ Questions for Class 10

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

Practice Questions

2 questions tagged with quadratic-zeroes.

Question 1/2 Medium Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=-x-2+25), तो ग्राफ के वास्तविक शून्यक कौन से होंगे?

If (p(x)=-x-2+25), what will be the real zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (5) और (-5)(5) and (-5)

Step 1

Concept

From \(-x^2+25=0\), \(x^2=25\), so \(x=\pm5\). Tip: even with a negative sign, set (y=0).

Step 2

Why this answer is correct

The correct answer is A. (5) और (-5) / (5) and (-5). From \(-x^2+25=0\), \(x^2=25\), so \(x=\pm5\). Tip: even with a negative sign, set (y=0).

Step 3

Exam Tip

\(-x^2+25=0\) से \(x^2=25\), इसलिए \(x=\pm5\) है। टिप: ऋण चिह्न देखकर भी (y=0) रखना न भूलें।

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Question 2/2 Easy Mathematics Chapter 2: Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किस स्थिति में द्विघात बहुपद के दो वास्तविक शून्यक होंगे?

In which case will a quadratic polynomial have two real zeroes?

Explanation opens after your attempt
Correct Answer

A. जब उसका ग्राफ (x)-अक्ष को दो अलग बिंदुओं पर काटेWhen its graph cuts the (x)-axis at two distinct points

Step 1

Concept

Real zeroes of a quadratic polynomial are found from points where it meets the (x)-axis. Two distinct intersections give two real zeroes.

Step 2

Why this answer is correct

The correct answer is A. जब उसका ग्राफ (x)-अक्ष को दो अलग बिंदुओं पर काटे / When its graph cuts the (x)-axis at two distinct points. Real zeroes of a quadratic polynomial are found from points where it meets the (x)-axis. Two distinct intersections give two real zeroes.

Step 3

Exam Tip

द्विघात बहुपद के वास्तविक शून्यक (x)-अक्ष से मिलने वाले बिंदुओं से मिलते हैं। दो अलग कटाव दो वास्तविक शून्यक देते हैं।

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