7x 2 9x 4 0 July 8, 2019 16 32 64 128 X 4 x 3 7x 2 9x 18 0 7x 2 29x 4 0 9x 2 7x 4 0 quadratic formula 9x 2 7x 4 0 factor Solve for x given 7x 2 9x 4 5x 5 0 2x 7 7x4 9