Solve each of the following quadratic equations by completing the square. x^2-6x-3=0 x^2 - 6x - 3 = 0 x^2 - 6x + ___ = 3 x^2 - 6x + 9 = 3 + 9 (x - 3)^2 = 12 x - 3 = +- x - 3 = +- x -3 = +- 2 x = 3 +- 2 x = 3 + 2 or x = 3 - 2