\(x^2+6x-55=0\) के मूल क्या हैं?
What are the roots of \(x^2+6x-55=0\)?
Explanation opens after your attempt
A. (x=5,-11)
Concept
((x+11)(x-5)=0), so (x=-11) and (x=5). In exams, the sign changes while finding roots from factors.
Why this answer is correct
The correct answer is A. (x=5,-11). ((x+11)(x-5)=0), so (x=-11) and (x=5). In exams, the sign changes while finding roots from factors.
Exam Tip
((x+11)(x-5)=0), इसलिए (x=-11) और (x=5) हैं। परीक्षा में गुणनखंड से मूल निकालते समय चिन्ह बदलता है।
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