factories : 64a cube - 125b cube. answer it polietly and correct. for class 9. only
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factories : 64a cube - 125b cube. answer it polietly and correct. for class 9. only
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Answer:
(4a-5b)(16a²+20ab+25b²) is the answer.
Step-by-step explanation:
64a³-125b³
= (4a)³-(5b)³
by identity a³-b³=(a-b)(a²+ab+b²)
(4a)³-(5b)³=(4a-5b)(16a²+20ab+25b²)