2 2x (- 9 )- 9 July 8, 2019 16 32 64 128 2 (- 2x 9 )+ 9 3 2x 2 9x 9 2x 2 9x 9 0 2x 2 9x 9 factor 2 /( 2x 9 1 /( 2x 9 X 2 9 2x 9 2 x 9 2x 9 3 x 5 7x 2 2x 9 7x 9 9x 3x 2 2x 9 4x 9 2 2x 9 2 x 3 9 2x 3 9 3 2x 2 9x 2 1 9 2x 2 x 9 7 9 2x 2 4a 9 x 6a 9 0 2x 2 9x 9 0 quadratic formula
