0 2 x 15 July 8, 2019 16 32 64 128 0 2 x 150 0 2 х 15 0 x 2 15x 100 0 =- x 2 15x 0 x 2 15x 36 0 =- x 2 15x 7 0 2x 2 15 0 x 2 2x 15 0 x 2 8x 15 0 2x 2 7x 15 0 2x 2 11x 15 6x 2 x 15 0 X 2 2x 15 0 completing the square X 2 x 156 0 6x 2 x 15 0 quadratic formula