说明:(x^3+5x^2+4x-1)-(-x^2-3x+2x^3-3)+(8-7x-6x^2+x^3)的值与x无关

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说明:(x^3+5x^2+4x-1)-(-x^2-3x+2x^3-3)+(8-7x-6x^2+x^3)的值与x无关
说明:(x^3+5x^2+4x-1)-(-x^2-3x+2x^3-3)+(8-7x-6x^2+x^3)的值与x无关

说明:(x^3+5x^2+4x-1)-(-x^2-3x+2x^3-3)+(8-7x-6x^2+x^3)的值与x无关
因为原式=x^3+5x^2+4x-1+x^2+3x-2x^3+3+8-7x-6x^2+x^3
=10
所以代数式的值是10,与x无关

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