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x^2+y^2=8 (1)
(x+1)^2 =(y-1)^2 (2)
from (2)
x+1 =y-1 or -(y-1)
x=y-2 or -y
case 1 x=y-2
from (1)
x^2+y^2=8
(y-2)^2 +y^2 =8
2y^2 -4y -4=0
y^2-2y -2 =0
y=1+√3 or 1-√3
y=1+√3 , x=-1+√3
y= 1-√3 , x=-3-√3
(x,y)=(-1+√3,1+√3 ) or (-3-√3, 1-√3)
case 2: x=-y
from (1)
x^2+y^2=8
y^2+y^2=8
y^2 =4
y=2 or -2
(x,y)=(2,-2) or (-2,2)
ie
(x,y)=(2,-2) or (-2,2) or (-1+√3,1+√3 ) or (-3-√3, 1-√3)
(x+1)^2 =(y-1)^2 (2)
from (2)
x+1 =y-1 or -(y-1)
x=y-2 or -y
case 1 x=y-2
from (1)
x^2+y^2=8
(y-2)^2 +y^2 =8
2y^2 -4y -4=0
y^2-2y -2 =0
y=1+√3 or 1-√3
y=1+√3 , x=-1+√3
y= 1-√3 , x=-3-√3
(x,y)=(-1+√3,1+√3 ) or (-3-√3, 1-√3)
case 2: x=-y
from (1)
x^2+y^2=8
y^2+y^2=8
y^2 =4
y=2 or -2
(x,y)=(2,-2) or (-2,2)
ie
(x,y)=(2,-2) or (-2,2) or (-1+√3,1+√3 ) or (-3-√3, 1-√3)
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