(2x+1)powers to 3

1.	(2x+1)powers to 3
Answer» \xa0(a + b)3 = a3 + b3 + 3a2b + 3ab2\xa0(2x + 1)3 = (2x)3 + (1)3 + 3(2x)2(1) + 3(2x)(1)2= 8x3 + 1 +3 (4x2) + 6x= 8x3 + 1 +12x2\xa0+ 6x

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