(1)已知m05+n05-6m+10n+34=0,求m+n的值 (2)试说明无论m、n为任何实数
1个回答
m²+n²-6m+10n+34=0
m²-6m+9+n²+10n+25=0
(m-3)²+(n+5)²=0
(m-3)²=0,(n+5)²=0
m=3,n=-5
m+n=3-5=-2
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