8x^3-y^3+1+6xy help me out
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Step-by-step explanation:(2x)^3+(-y)^3+1-3.2x(-y).1
(2x+y+1)^3-3.2x.-y-3.1.-y-3.2x.1
(2x+y+1)^3+6xy+3y-6x
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