解方程x2+2xy+2y2-10x-16y+34=0

分类: 作业答案 • 2022-01-09 18:02:57

问题描述：

答

x2+2xy+2y2-10x-16y+34=0
(x+y)^2-10(x+y)+y^2-6y+9+25=0
(x+y-5)^2+(y-3)^2=0
y=3,x=2