\(64r^3+125s^3\) का सही गुणनखंड रूप क्या है?
What is the correct factorised form of \(64r^3+125s^3\)?
Explanation opens after your attempt
A. ((4r+5s)\(16r^2-20rs+25s^2\))
Concept
This is ((4r)3+(5s)3). Exam tip: in sum of cubes, keep signs (+,-,+) in the second bracket.
Why this answer is correct
The correct answer is A. ((4r+5s)\(16r^2-20rs+25s^2\)). This is ((4r)3+(5s)3). Exam tip: in sum of cubes, keep signs (+,-,+) in the second bracket.
Exam Tip
यह ((4r)3+(5s)3) है। परीक्षा में घनों के योग में दूसरे कोष्ठक के चिन्ह (+,-,+) रखें।
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