(x+2/x^2-x-6)-(2x/x^2-3x)-(x+1/x^2-6x+9)

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/11 00:08:36

原式=(x+2)/(x+2)(x-3)-2x/x(x-3)-(x+1)/(x-3)²
=1/(x-3)-2/(x-3)-(x+1)/(x-3)²
=-1/(x-3)-(x+1)/(x-3)²
=-[(x-3)+(x+1)]/(x-3)²
=-(2x-2)/(x²-6x+9)

|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| (x+2/x^2-x-6)-(2x/x^2-3x)-(x+1/x^2-6x+9) x+2/x^2-x-6 + 2x/x^3-3x - x+1/x^2-6x+9 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 约分 (X的平方+4x+3)(2x-x)^/(X^+X)(X^+X-6), 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值 x/x-3-5x/x^2-x-6计算计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9) y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1 设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10), 求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)