X-2/5X=5/8X-160怎么解列式
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
x+8=5x怎么算
2X=5X怎么算?
(x+5)^2=10+(x+5)x怎么算
2x/(x^2+x)-1/x=5/(x+1)怎么做?
X-5+8*X=7*X-2*X-1
7x(x-6)+3x=4x(2x+5)怎么解这个方程
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
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
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),