(x^2-7x)^2+10(x^2-7x)-24
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
x+(x+24)+(x+4)/2=7x
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),
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
X+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(x×x+3x+2)(x×x+7x+12)-24
(x+2)(x-12)+(x+7)(x+8)+(x+5)(x-10),化简.
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?