0 3x 2 12x 15 July 8, 2019 16 32 64 128 3x 4 12x 2 15 0 3x 2 12x 15 0 completing the square 3x 2 12x 15 0 quadratic formula 3x 3 12x 2 15x 0 Which of the following is equivalent to 0 3x 2 12x 15 when completing the square 0 12 x 3 2 x 13