2 9x 8 0 July 8, 2019 16 32 64 128 X 2 9x 8 0 2x 2 9x 8 0 X 2 9x 8 0 quadratic formula 3x 2 9x 8 0 5x 2 9x 8 0 4x 2 9x 8 0 7x 2 9x 8 0 9x 2 21x 8 0 9x 2 6x 8 0 9x 2 18x 8 0 9x 2 22x 8 0 Solve x 2 9x 8 0 8 9x 3x 2 0 дискриминант X 2 9x 8 0 solve by factoring X 2 9x 8 0 completing the square