write cube by using suitable identity (3/2x+1)^3
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Answer:
a=3/2x, b=1
(3/2x+1)^3= (3/2x)^3+3 (3/2x)^2(1)+3(3/2x)(1)^2+(1)^3
27/8x^3+27/4x^2+9x/2+1
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