\(x^2+17x+72\) का गुणनखंड रूप कौन-सा है?
Which is the factorised form of \(x^2+17x+72\)?
Explanation opens after your attempt
A. ((x+8)(x+9))सही गुणनखंड
Concept
Here (8+9=17) and \(8\cdot9=72\). In exams choose factors of the constant whose sum is the middle coefficient.
Why this answer is correct
The correct answer is A. ((x+8)(x+9)) / सही गुणनखंड. Here (8+9=17) and \(8\cdot9=72\). In exams choose factors of the constant whose sum is the middle coefficient.
Exam Tip
(8+9=17) और \(8\cdot9=72\) है। परीक्षा में स्थिर पद के ऐसे गुणनखंड चुनें जिनका योग मध्य गुणांक हो।
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