2x/(x^2+x)-1/x=5/(x+1)怎么做?
2x/(x^2+x)-1/x=5/(x+1)怎么做?
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|x+3|-|2x-1|+|x-2|>1怎么做
lim(sin(x^2*cos(1/x)))/x怎么做?
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
(2x+1)(3x+2)^2(x^2+5x-24)>0怎么做
(5x+2)(x-2) -5(x+1)(x-3)怎么做
[3-2x/1-x]-1=[x+2/x-3]怎么做
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
5/2x+4-1/2-x=4/x^2-4怎么做?
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4