X 2 2x 2 9x 18 July 8, 2019 16 32 64 128 X 2 2x 2 9x 18 0 X 3 2x 2 9x 18 factor X 3 2x 2 9x 18 factor by grouping X 2 2x 2 9x 2 18x 20 X 3 2x 2 9x 18 zeros 2x 2 16x x 2 9x 18 X 2 − 9x 18 2x 2 3x − 1 2x 2 9x 18 )/( x 2 2x 24 2x 2 18x x 2 9x X 3 2x 2 9x 18 x 3 x 2 6x