Answer
$(x-2)(x+1)(-x+8)=-(x-2)(x+1)(x-8)$
Work Step by Step
$2(x-2)(x+1)^2-3(x-2)^2(x+1)=2(x-2)(x+1)(x+1)-3(x-2)(x-2)(x+1)=(x-2)(x+1)[2(x+1)-3(x-2)]=(x-2)(x+1)(2x+2-3x+6)=(x-2)(x+1)(-x+8)=-(x-2)(x+1)(x-8)$
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