x-5/9x=1/3x+18
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x
(x-1)(x-3)(x-5)(x-7)-9 因式分解
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),
0.75x-1/2x=-5;3x+5=4x+1;3X+5=4X+18;1-7x=x-7;9x+8-7x=3x;-(x-2
方程x+1x+2+x+8x+9=x+2x+3+x+7x+8
x+3/x+1-x+5/x+3-x+7/x+5+x+9/x+7=0
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-1
(x-2)(x2-6x-9)-x(x-5)(x-3)其中x= -1/3
因式分解:x^9+x^8-x^6-x^5+x^3+x^2-1