m^2+n^2=100,m+n=14,怎么解出M,
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m^2+n^2=100,m+n=14,怎么解出M,
m^2+n^2=100,m+n=14,怎么解出M,
m^2+n^2=100,m+n=14,怎么解出M,
m=8 n=6 (14-n)^2+n^2=100 196+n^2-28n+n^2=100 196+2n^2-28n=100 n^2-14n= - 48 n=6或8 当n=6时 m=8 当n=8时 m=6
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m=2+n,2m+3n=14
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