factorize : 8xcube - ( 2x - 3y ) the whole cube
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Step-by-step explanation:
8x^3-(2x-y)^3
=(2x)^3-(2x-y)^3
=[2x-(2x-y)][(2x)^2-2x*(2x-y)+(2x-y)^2]
=[2x-2x-y][4x^2-4x^2+2xy+4x^2-4xy+y^2]
=(-y)[4x^2-2xy+y^2]
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