2x 2 12x 9 0 July 8, 2019 16 32 64 128 2x 2 12x 9 0 complete the square 2x 3 11x 2 12x 9 0 X 4 4x 3 2x 2 12x 9 0 2x 3 x 2 12x 9 0 Solve x 4 4x 3 2x 2 12x 9 0 4x 2 12x 9 2x 3 0 2x 9