Complete the square to rewrite the following explanation x^2 + 4x + y^2 - 6y = -4
x^2 + 4x + y^2 -6y = -4
x^2 + 4x + 4 + y^2 -6y+9 = -4 +4 + 9
(x+2)^2 + (y-3)^2 = 9
+36916 
