\(x^2-x-20\) का सही गुणनखंडन चुनिए।

Choose the correct factorisation of \(x^2-x-20\).

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. ((x-5)(x+4))

Step 1

Concept

(-5+4=-1) and \(-5\cdot4=-20\). Therefore ((x-5)(x+4)) is correct.

Step 2

Why this answer is correct

The correct answer is A. ((x-5)(x+4)). (-5+4=-1) and \(-5\cdot4=-20\). Therefore ((x-5)(x+4)) is correct.

Step 3

Exam Tip

(-5+4=-1) और \(-5\cdot4=-20\) है। इसलिए ((x-5)(x+4)) सही है।

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Mathematics Answer, Explanation and Revision Hints

\(x^2-x-20\) का सही गुणनखंडन चुनिए। / Choose the correct factorisation of \(x^2-x-20\).

Correct Answer: A. ((x-5)(x+4)). Explanation: (-5+4=-1) और \(-5\cdot4=-20\) है। इसलिए ((x-5)(x+4)) सही है। / (-5+4=-1) and \(-5\cdot4=-20\). Therefore ((x-5)(x+4)) is correct.

Which concept should I revise for this Mathematics MCQ?

(-5+4=-1) and \(-5\cdot4=-20\). Therefore ((x-5)(x+4)) is correct.

What exam hint can help solve this Mathematics question?

(-5+4=-1) और \(-5\cdot4=-20\) है। इसलिए ((x-5)(x+4)) सही है।