\(9x^2+12xy+4y^2-16\) का सही गुणनखंडन चुनिए।
Choose the correct factorisation of \(9x^2+12xy+4y^2-16\).
Explanation opens after your attempt
A. ((3x+2y-4)(3x+2y+4))
Concept
First (9x-2+12xy+4y-2=(3x+2y)2). Then subtract \(16=4^2\) and use difference of squares.
Why this answer is correct
The correct answer is A. ((3x+2y-4)(3x+2y+4)). First (9x-2+12xy+4y-2=(3x+2y)2). Then subtract \(16=4^2\) and use difference of squares.
Exam Tip
पहले (9x-2+12xy+4y-2=(3x+2y)2) है। फिर \(16=4^2\) घटाकर अंतर के वर्ग लगाएं।
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