计算：(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程

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计算：(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
计算：(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程

计算：(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
(x-1)(x^2-4x+3)-x(x^2-5x+2)
=x(x^2-4x+3)-(x^2-4x+3)-x(x^2-5x+2)
=x(x^2-5x+2+x+1)-(x^2-4x+3)-x(x^2-5x+2)
=x(x^2-5x+2)+x(x+1)-(x^2-4x+3)-x(x^2-5x+2)
=x(x+1)-(x^2-4x+3)
=x^2+x-x^2+4x-3
=x^2-x^2+x+4x-3
=5x-3

汗 =x³-4x²+3x-x²+4x-3-x³+5x²-2x
=2x-3

(x-1)(x^2-4X+3)-x(x^2-5X+2)
=x^3-4x^2+3x-x^2+4x-3 - x^3+5x^2-2x
=5x - 3

(x-1)(x^2-4X+3)-x(x^2-5X+2)=(x-1)(x-1)(x-3)-x^3+5x-2x
=x^3-3*x^2-2*x^2+6x+x-3-x^3+5x-2x
=5x-3

(x-1)(x^2-4X+3)-x(x^2-5X+2)
=x^3-4x^2+3x-x^2+4x-3 - x^3+5x^2-2x
=5x - 3

(x-1)(x^2-4x+3)-x(x^2-5x+2)
=(x-1)(x^2-4x+3)-x(x^2-4x+3-x-1)
=(x-1)(x^2-4x+3)-x(x^2-4x+3)-x(-x-1)
=(x-1-x) (x^2-4x+3)+x^2+x
=-1(x^2-4x+3) +x^2+x
=5x-3

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