22 The method of completing the square was used to solve the equation 2x2 - 12x + 6 = 0. Which equation is a correct step when using this method?
(1) (x - 3)^2 = 6 (3) (x - 3)^2 = 3
(2) (x - 3)^2 = -6 (4) (x - 3)^2 = -3
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