x²+2xy+2y²-10x-16y+34=0
(x+y)²-10(x+y)+y²-6y+9+25=0
(x+y-5）²+(y-3)²=0
y=3,x=2
x2+2xy+2y2-10x-16y+34=0请问这个方程怎么解
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