化简(1/x+3)-(6/x^2-9)-(x-1/6-2x)

来源：学生作业帮编辑：百度作业网作业帮分类：数学作业时间：2024/08/19 17:11:07

1/(x+3)-6/(x²-9)-(x-1)/(6-2x)
=1/(x+3)-6/[(x+3)(x-3)]+(x-1)/(2x-6)
=1/(x+3)-6/[(x+3)(x-3)]+(x-1)/2(x-3)
=2(x-3)/[2(x+3)(x-3)]-12/[2(x+3)(x-3)]+[(x+3)(x-1)]/[2(x+3)(x-3)]
=[2(x-3)-12+(x+3)(x-1)]/[2(x+3)(x-3)]
=(2x-6-12+x²+2x-3)/[2(x+3)(x-3)]
=(x²+4x-21)/[2(x+3)(x-3)]
=(x+7)(x-3)/[2(x+3)(x-3)]
=(x+7)/[2(x+3)]
=(x+7)/(2x+6)
注：为了让你看得更清,写得详细了点,具体解题时部分过程可以省略.

|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| 化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x) 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x) (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 化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3} 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) x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x) 求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-1 (x^21+x^15+x^12+x^9+x^6+x^3+1)/(x^2+x+1)