2 + x (2 + x) - 4 x y + 5 y^2 = 6 y, 3 (-1 + x) x + (2 + x) y = 1 + 2 y^2
x^2-4 x y+2 x+5 y^2+2 = 6 y, 3 x^2+x (y-3)+2 y = 2 y^2+1
2 + 2 x + x^2 - 4 x y + 5 y^2 = 6 y, 3 x^2 + x (-3 + y) + 2 y = 1 + 2 y^2
x^2-4 x y+2 x+5 y^2+2 = 6 y, 3 x^2+x (y-3)+2 y = 2 y^2+1