\(7x^2-28y^2\) का गुणनखंडन क्या है?

What is the factorisation of \(7x^2-28y^2\)?

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

A. (7(x-2y)(x+2y))

Step 1

Concept

Taking (7) common gives \(x^2-4y^2\). This is ((x-2y)(x+2y)).

Step 2

Why this answer is correct

The correct answer is A. (7(x-2y)(x+2y)). Taking (7) common gives \(x^2-4y^2\). This is ((x-2y)(x+2y)).

Step 3

Exam Tip

(7) समान निकालने पर \(x^2-4y^2\) मिलता है। यह ((x-2y)(x+2y)) है।

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Mathematics Answer, Explanation and Revision Hints

\(7x^2-28y^2\) का गुणनखंडन क्या है? / What is the factorisation of \(7x^2-28y^2\)?

Correct Answer: A. (7(x-2y)(x+2y)). Explanation: (7) समान निकालने पर \(x^2-4y^2\) मिलता है। यह ((x-2y)(x+2y)) है। / Taking (7) common gives \(x^2-4y^2\). This is ((x-2y)(x+2y)).

Which concept should I revise for this Mathematics MCQ?

Taking (7) common gives \(x^2-4y^2\). This is ((x-2y)(x+2y)).

What exam hint can help solve this Mathematics question?

(7) समान निकालने पर \(x^2-4y^2\) मिलता है। यह ((x-2y)(x+2y)) है।