\(x^2-14x+49\) का सही गुणनखंड रूप क्या है?
What is the correct factorised form of \(x^2-14x+49\)?
Explanation opens after your attempt
B. ((x-7)2)
Concept
\(49=7^2\) and \(-14x=-2\times7\times x\). Exam tip: identify ((a-b)2) from the negative middle term.
Why this answer is correct
The correct answer is B. ((x-7)2). \(49=7^2\) and \(-14x=-2\times7\times x\). Exam tip: identify ((a-b)2) from the negative middle term.
Exam Tip
\(49=7^2\) और \(-14x=-2\times7\times x\) है। परीक्षा में ऋणात्मक मध्य पद देखकर ((a-b)2) पहचानें।
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