3/1*(2x-1)=6/1x+1怎样做
x/(x-2)+(x+9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)怎样解这道方程
2x/3+75%x=1/6怎么做
小数奥数网xx(x +1)x(x+ 2)x(x +3)=360怎样算?
解方程:x分之2 + x-2分之x=1 怎样做?
∫x²ln(x+1)dx怎样做
|x+3|-|2x-1|+|x-2|>1怎么做
f(x)=3x-(1-x) 怎样求导
[3-2x/1-x]-1=[x+2/x-3]怎么做
(6x+7)(6x+7)(3x+4)(x+1)=6 怎么做啊
2x-1/3-10x-1/6-2x+1/4=1怎样计算?
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x/(x^2+x)-1/x=5/(x+1)怎么做?