0 =- x 2 15x 7 July 8, 2019 16 32 64 128 X 2 15x 76 0 X 3 9x 2 15x 7 0 X 2 15x 7 0 quadratic formula X 2 15x 75 0 Solve for x 15x 2 7x 36 0 0 x 2