(x-1)*(x+2)*(x+3)=多少

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(x-1)*(x+2)*(x+3)=多少(x-1)*(x+2)*(x+3)=多少(x-1)*(x+2)*(x+3)=多少原式=x(x+2)(x+3)-(x+2)(x+3)=x{x^2+2x+3x+6}

(x-1)*(x+2)*(x+3)=多少
(x-1)*(x+2)*(x+3)=多少

(x-1)*(x+2)*(x+3)=多少
原式=x(x+2)(x+3)-(x+2)(x+3)
=x{x^2+2x+3x+6}-{x^2+2x+3x+6}
=x^3+5x^2+6x-x^2-5x-6
=x^3+4x^2+x-6
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