\(x^2+10x+21\) के गुणनखंड क्या हैं?
What are the factors of \(x^2+10x+21\)?
Explanation opens after your attempt
B. ((x+3)(x+7))
Concept
(3+7=10) and \(3\cdot7=21\). Exam tip: choose the pair of factors of the last term.
Why this answer is correct
The correct answer is B. ((x+3)(x+7)). (3+7=10) and \(3\cdot7=21\). Exam tip: choose the pair of factors of the last term.
Exam Tip
(3+7=10) और \(3\cdot7=21\) है। परीक्षा में अंतिम पद के कारकों की जोड़ी चुनें।
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