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Question Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

कौन सा मान \(x^2-3x-10=0\) का हल है?

Which value is a solution of \(x^2-3x-10=0\)?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

Since \(5^2-3\cdot5-10=0\), (x=5) is a solution.

Step 2

Why this answer is correct

The correct answer is C. (5). Since \(5^2-3\cdot5-10=0\), (x=5) is a solution.

Step 3

Exam Tip

\(5^2-3\cdot5-10=0\) है। इसलिए (x=5) हल है।

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Question Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

यदि (x=3) है तो \(x^2-4x+3=0\) में बायां पक्ष कितना होगा?

If (x=3), what is the left side of \(x^2-4x+3=0\)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Substitution gives \(3^2-4\cdot3+3=0\). So (x=3) is a solution.

Step 2

Why this answer is correct

The correct answer is A. (0). Substitution gives \(3^2-4\cdot3+3=0\). So (x=3) is a solution.

Step 3

Exam Tip

रखने पर \(3^2-4\cdot3+3=0\) मिलता है। इसलिए (x=3) हल है।

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