x²+2x+y²-6y+10=0,求x/y

问题描述:

x²+2x+y²-6y+10=0,求x/y

x²+2x+1+y²-6y+9=0
(x+1)²+(y-3)²=0
∴x+1=0
y-3=0
x=-1
y=3
x/y=-1/3