The method of completing the square was used to solve the equation x ^ 2 - 6x + 3 = 0 . Which equation is a correct step when using this method? (1) (x - 3) ^ 2 = 6 (2) * (x - 3) ^ 2 = - 6 (3) * (x - 3) ^ 2 = 3 (4) * (x - 3) ^ 2 - 3