\(x^2+14x+49\) का गुणनखंडन चुनिए।
Choose the factorisation of \(x^2+14x+49\).
Explanation opens after your attempt
B. ((x+7)2)
Concept
\(49=7^2\) and \(14x=2\cdot7x\). So (x-2+14x+49=(x+7)2).
Why this answer is correct
The correct answer is B. ((x+7)2). \(49=7^2\) and \(14x=2\cdot7x\). So (x-2+14x+49=(x+7)2).
Exam Tip
\(49=7^2\) और \(14x=2\cdot7x\) है। इसलिए (x-2+14x+49=(x+7)2) है।
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