若m^2+n^2=6n-4m-13,则m^2-n^2=()
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若m^2+n^2=6n-4m-13,则m^2-n^2=()若m^2+n^2=6n-4m-13,则m^2-n^2=()若m^2+n^2=6n-4m-13,则m^2-n^2=()(m+2)平方+(n-3)
若m^2+n^2=6n-4m-13,则m^2-n^2=()
若m^2+n^2=6n-4m-13,则m^2-n^2=()
若m^2+n^2=6n-4m-13,则m^2-n^2=()
(m+2)平方+ (n-3)平方 = 0
m=-2
n=3
m^2-n^2=-5
若m^2+n^2-6n+4m+13=0则m-n=?
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m^2+n^2=6n-4m-13,则m^2-n^2=?
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若m^2+n^2=6n-4m-13,则m^2-n^2=( )
若m^2+n^2=6n-4m-13,则m^2-n^2=()
若m^2+n^2-6n+4m+13=0,则m^2-n^2=?
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若|m-n|=n-m,且|m|=4,|n|=3,则(m+n)^2=?
若m^2+n^2-6n+4n+13=0,则m^2-n^2=