27a³+64b³factorise with the identity x³+y³=(x+y)(x²-xy+y²
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27a³- 64b³
(3a)³+ (4b)³= (3a+4b)(9a²+12ab-16b²)
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Step-by-step explanation:
(3a+4b)(9a^2-12ab+16b^2)
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