若m^2+n^2+2m-4n+5=0,则m+n=?
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若m^2+n^2+2m-4n+5=0,则m+n=?若m^2+n^2+2m-4n+5=0,则m+n=?若m^2+n^2+2m-4n+5=0,则m+n=?(M+1)^2+(n-2)^2=0……m=-1.n
若m^2+n^2+2m-4n+5=0,则m+n=?
若m^2+n^2+2m-4n+5=0,则m+n=?
若m^2+n^2+2m-4n+5=0,则m+n=?
(M +1)^2+(n-2)^2=0……m=-1.n=2 m+n=1
若m^2+n^2+2m-4n+5=0,则m+n=?
若m^2+n^2-6n+4m+13=0则m-n=?
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若 m^2+4n^2-4m+4n+5=0,则m^n=
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设m,n满足m^2+n^2+2m+4n+5=0,求n^m的值
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