\(16a^4-81b^4\) का पूर्ण गुणनखंड रूप क्या है?
What is the complete factorised form of \(16a^4-81b^4\)?
Explanation opens after your attempt
B. ( (2a-3b)(2a+3b)\(4a^2+9b^2\) )
Concept
First write \(16a^4-81b^4\) as (\(4a^2\)2-\(9b^2\)2). Then factor \(4a^2-9b^2\) further.
Why this answer is correct
The correct answer is B. ( (2a-3b)(2a+3b)\(4a^2+9b^2\) ). First write \(16a^4-81b^4\) as (\(4a^2\)2-\(9b^2\)2). Then factor \(4a^2-9b^2\) further.
Exam Tip
पहले \(16a^4-81b^4\) को (\(4a^2\)2-\(9b^2\)2) लिखें। फिर \(4a^2-9b^2\) को आगे तोड़ें।
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