解一元二次方程y^2+1/y+2y+(2-6y)/y=01.解一元二次方程 y^2+1/y+2y+(2-6y)/y=02.(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)

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解一元二次方程y^2+1/y+2y+(2-6y)/y=01.解一元二次方程 y^2+1/y+2y+(2-6y)/y=02.(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)
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解一元二次方程y^2+1/y+2y+(2-6y)/y=01.解一元二次方程 y^2+1/y+2y+(2-6y)/y=02.(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)
解一元二次方程y^2+1/y+2y+(2-6y)/y=0
1.解一元二次方程 y^2+1/y+2y+(2-6y)/y=0
2.(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)

解一元二次方程y^2+1/y+2y+(2-6y)/y=01.解一元二次方程 y^2+1/y+2y+(2-6y)/y=02.(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)
1.这个不是一元二次方程
先化简y^2+3/y+2y-6=0
两边同时乘y得y^3+2y^2-6y+3=0
(y^3-y^2)+(3y^2-6y+3)=0
y^2(y-1)+3(y-1)^2=0
(y-1)(y^2+3y-3)=0 剩下的自己会解吧,实在不好写
2,化简,你先化简一下好不好,我没笔

- -显然不是2次的。。

1、y^2+1/y+2y+(2-6y)/y=0
y^3+2y^2-6y+3=0
(y-1)(y^2+3y-3)=0
y=1,y=(-3±√21)/2
2、(x-7)/(x-1)=(2x-3)/(x+2)+(2x-1)/(x+1)

5822.

fei3

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