关于y的方程1/(y-3)+m/(y+3)=(3+m)/(y^2-9)有增根,则m=_______
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![关于y的方程1/(y-3)+m/(y+3)=(3+m)/(y^2-9)有增根,则m=_______](/uploads/image/z/14571970-34-0.jpg?t=%E5%85%B3%E4%BA%8Ey%E7%9A%84%E6%96%B9%E7%A8%8B1%2F%28y-3%29%2Bm%2F%28y%2B3%29%3D%283%2Bm%29%2F%28y%5E2-9%29%E6%9C%89%E5%A2%9E%E6%A0%B9%2C%E5%88%99m%3D_______)
关于y的方程1/(y-3)+m/(y+3)=(3+m)/(y^2-9)有增根,则m=_______
关于y的方程1/(y-3)+m/(y+3)=(3+m)/(y^2-9)有增根,则m=_______
关于y的方程1/(y-3)+m/(y+3)=(3+m)/(y^2-9)有增根,则m=_______
y+3+m(y-3)=3+m
要有增根,y=3或y=-3
当y=3时
3+3=3+m
m=3
当y=-3时
-3+3-6m=3+m
7m=-3
m=-3/7
∴m=3或-3/7