(\(x^2-4\)\(x^2+4\)) का विस्तृत रूप क्या है?
What is the expanded form of (\(x^2-4\)\(x^2+4\))?
Explanation opens after your attempt
A. \(x^4-16\)
Concept
This is the identity \(a^2-b^2\), so (\(x^2\)2-42=x-4-16). Identities make expansion faster.
Why this answer is correct
The correct answer is A. \(x^4-16\). This is the identity \(a^2-b^2\), so (\(x^2\)2-42=x-4-16). Identities make expansion faster.
Exam Tip
यह \(a^2-b^2\) की पहचान है, इसलिए (\(x^2\)2-42=x-4-16)। पहचान से विस्तार तेज होता है।
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