\(7x^2-28y^2\) का गुणनखंडन क्या है?
What is the factorisation of \(7x^2-28y^2\)?
Explanation opens after your attempt
A. (7(x-2y)(x+2y))
Concept
Taking (7) common gives \(x^2-4y^2\). This is ((x-2y)(x+2y)).
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)).
Exam Tip
(7) समान निकालने पर \(x^2-4y^2\) मिलता है। यह ((x-2y)(x+2y)) है।
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