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root checking MCQ Questions for Class 10

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

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4 questions tagged with root checking.

Question 1/4 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

क्या (x=2) समीकरण \(x^2-4=0\) का मूल है?

Is (x=2) a root of \(x^2-4=0\)?

Explanation opens after your attempt
Correct Answer

A. हाँYes

Step 1

Concept

Putting (x=2) gives \(2^2-4=0\). To check a root, substitute the value and see if the result is (0).

Step 2

Why this answer is correct

The correct answer is A. हाँ / Yes. Putting (x=2) gives \(2^2-4=0\). To check a root, substitute the value and see if the result is (0).

Step 3

Exam Tip

(x=2) रखने पर \(2^2-4=0\) मिलता है। मूल जांचने के लिए मान रखकर परिणाम (0) देखें।

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Question 2/4 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

समीकरण \(x^2-8x+16=0\) में (x=4) रखने पर क्या मिलता है?

What do we get by putting (x=4) in \(x^2-8x+16=0\)?

Explanation opens after your attempt
Correct Answer

A. (0=0)

Step 1

Concept

We get \(4^2-8\cdot4+16=0\). So (x=4) satisfies the equation.

Step 2

Why this answer is correct

The correct answer is A. (0=0). We get \(4^2-8\cdot4+16=0\). So (x=4) satisfies the equation.

Step 3

Exam Tip

\(4^2-8\cdot4+16=0\) मिलता है। इसलिए (x=4) समीकरण को संतुष्ट करता है।

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Question 3/4 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 28

कौन सा मान \(x^2+x-6=0\) का हल है?

Which value is a solution of \(x^2+x-6=0\)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

Since \(2^2+2-6=0\), (x=2) is a solution of the equation.

Step 2

Why this answer is correct

The correct answer is B. (2). Since \(2^2+2-6=0\), (x=2) is a solution of the equation.

Step 3

Exam Tip

\(2^2+2-6=0\) है। इसलिए (x=2) इस समीकरण का हल है।

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Question 4/4 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 28

यदि (x=2) है तो \(x^2-5x+6=0\) में बायां पक्ष कितना होगा?

If (x=2), what is the left side of \(x^2-5x+6=0\)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Substitution gives \(2^2-5\cdot2+6=0\). So (x=2) is a solution.

Step 2

Why this answer is correct

The correct answer is A. (0). Substitution gives \(2^2-5\cdot2+6=0\). So (x=2) is a solution.

Step 3

Exam Tip

रखने पर \(2^2-5\cdot2+6=0\) मिलता है। इसलिए (x=2) समीकरण का हल है।

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