factorise (2a+3b)^3 - (2a-3b)^3
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(2a+3b)³- (2a-3b) ³
Evaluate : (2a+3b)3 = 8a3+36a2b+54ab2+27b3
Evaluate : (2a-3b)3 = 8a3-36a2b+54ab2-27b3
= 8a³+36a²b+54ab²+27b³-8a³+36a²b-54ab²+27b³
= 72a2b + 54b3
= 18b • (4a2 + 3b2)
Hope it helps u :-)
Evaluate : (2a+3b)3 = 8a3+36a2b+54ab2+27b3
Evaluate : (2a-3b)3 = 8a3-36a2b+54ab2-27b3
= 8a³+36a²b+54ab²+27b³-8a³+36a²b-54ab²+27b³
= 72a2b + 54b3
= 18b • (4a2 + 3b2)
Hope it helps u :-)
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