expand the following
(2x+1)^3
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Answer:
(2x+1)^3=(2x)^3+(1)^3+3 (2x)×(1)[2x+1]
=8x^3+1+6x[2x+1]
=8x^3+1+12x^2+6x
=8x^3+12x^2+6x+1 [ans]
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