\(x^4-81\) का पूर्ण गुणनखंडन क्या होगा?
What will be the complete factorisation of \(x^4-81\)?
Explanation opens after your attempt
C. ((x-3)(x+3)\(x^2+9\))
Concept
(x-4-81=\(x^2-9\)\(x^2+9\)) and (x-2-9=(x-3)(x+3)). Exam tip: check difference of squares repeatedly.
Why this answer is correct
The correct answer is C. ((x-3)(x+3)\(x^2+9\)). (x-4-81=\(x^2-9\)\(x^2+9\)) and (x-2-9=(x-3)(x+3)). Exam tip: check difference of squares repeatedly.
Exam Tip
(x-4-81=\(x^2-9\)\(x^2+9\)) और (x-2-9=(x-3)(x+3)) है। परीक्षा में बार बार वर्गों के अंतर को जांचें।
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