x²-2x+y²+6y+10=0x²-2x+y²+6y+10=0 (x-1)^2 + (y+3)^2 =0因为平方后的数一定大于等于0,所以,x=1,y=-3x+y=-2
(X-1)^2+(Y+3)^2=0X=1,Y=-3X+Y=-2