\(x^2-17x+72=0\) के मूल क्या होंगे?
What will be the roots of \(x^2-17x+72=0\)?
Explanation opens after your attempt
A. (x=8,9)
Concept
(x-2-17x+72=(x-8)(x-9)), so the roots are (8) and (9). In exams, check (8+9=17) and \(8\times9=72\).
Why this answer is correct
The correct answer is A. (x=8,9). (x-2-17x+72=(x-8)(x-9)), so the roots are (8) and (9). In exams, check (8+9=17) and \(8\times9=72\).
Exam Tip
(x-2-17x+72=(x-8)(x-9)), इसलिए मूल (8) और (9) हैं। परीक्षा में (8+9=17) और \(8\times9=72\) जांचें।
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