若4a-1/(a+2)(a-1)=m/(a+2)+n/(a-1),则m=____n=____(希望有过程)
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![若4a-1/(a+2)(a-1)=m/(a+2)+n/(a-1),则m=____n=____(希望有过程)](/uploads/image/z/5478846-6-6.jpg?t=%E8%8B%A54a-1%2F%28a%2B2%29%28a-1%29%3Dm%2F%28a%2B2%29%2Bn%2F%28a-1%29%2C%E5%88%99m%3D____n%3D____%28%E5%B8%8C%E6%9C%9B%E6%9C%89%E8%BF%87%E7%A8%8B%EF%BC%89)
若4a-1/(a+2)(a-1)=m/(a+2)+n/(a-1),则m=____n=____(希望有过程)
若4a-1/(a+2)(a-1)=m/(a+2)+n/(a-1),则m=____n=____(希望有过程)
若4a-1/(a+2)(a-1)=m/(a+2)+n/(a-1),则m=____n=____(希望有过程)
m/(a+2)+n/(a-1)
=[m(a-1)+n(a+2)]/(a+2)(a-1)
=[(m+n)a+(2n-m)]/(a+2)(a-1)
=(4a-1)/(a+2)(a-1)
所以m+n=4
2n-m=-1
相加
3n=3
n=1,m=4-n=3