1.12-4(3x-1)≤2(2x-16) 2.x+3/5<2x-5/3-1 3.2x-1/3-3x-1/2≥5/12
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
5x(3x-2)-(x+1)
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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),
x+2/x+1-x+3/x+2-x-4/x-3+x-5/x-4如何分解因式
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8