yes that is correct
y2 + y2 = 2y2
88 + 5y - y2 66 - 3y + y2 Subtract: 22 + 8y -2y2
y2=-x2-8x+6
X2+y2=25 (x-8)2+y2 =41
There is no expansion for x2 + y2
(y2+13y+22)/(y+2) = (y+11)
4
25x2 - 10xy + y2 = (5x - y)2
(2-r)e-rr
This is not factor-able.
(y - 5)(y - 6)