गुणनखंड विधि से \(x^2-15x+56=0\) के मूल क्या होंगे?
Using factorisation method, what will be the roots of \(x^2-15x+56=0\)?
Explanation opens after your attempt
A. (x=7,8)
Concept
(x-2-15x+56=(x-7)(x-8)), so the roots are (7) and (8). In exams, check both sum and product.
Why this answer is correct
The correct answer is A. (x=7,8). (x-2-15x+56=(x-7)(x-8)), so the roots are (7) and (8). In exams, check both sum and product.
Exam Tip
(x-2-15x+56=(x-7)(x-8)), इसलिए मूल (7) और (8) हैं। परीक्षा में योग और गुणनफल दोनों मिलाकर जांचें।
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