(a+b)3-(a-b)3 please solve it don't just simply give answer
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Answer:
= (a+b)³ - (a-b)³
= (a³+3a²b+3ab²+b³) - (a³-3a²b+3ab²-b³)
= a³+3a²b+3ab²+b³- a³+3a²b-3ab²+b³
= 6a²b+2b³
= 2b (3a²+b²)
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