\(x^2-121=0\) के हल क्या हैं?
What are the solutions of \(x^2-121=0\)?
Explanation opens after your attempt
A. \(x=\pm11\)
Concept
(x-2-121=(x-11)(x+11)), so \(x=\pm11\). In exams, recognize \(121=11^2\).
Why this answer is correct
The correct answer is A. \(x=\pm11\). (x-2-121=(x-11)(x+11)), so \(x=\pm11\). In exams, recognize \(121=11^2\).
Exam Tip
(x-2-121=(x-11)(x+11)), इसलिए \(x=\pm11\) है। परीक्षा में \(121=11^2\) पहचानें।
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