X 3 2 9x 2 July 8, 2019 16 32 64 128 X 3 27 9x 2 27x X 3 2x 2 9x 18 X 3 9x 2 23x 15 X 3 9x 2 26x 24 X 3 9x 2 26x 24 0 X 3 2x 2 9x 18 factor X 3 9x 2 20x X 3 9x 2 20x 0 X 3 9x 2 24x 16 X 3 2x 2 9x 18 factor by grouping X 3 9x 2 24x 20 X 3 9x 2 24x 16 0 X 3 9x 2 27x X 3 9x 2 24x 20 0 X 3 9x 2 24x