X 2 4x 2 9x 36 July 8, 2019 16 32 64 128 X 2 4x 4 2 9x 2 36x 44 0 X 3 4x 2 9x 36 X 3 4x 2 9x 36 0 X 3 4x 2 9x 36 factor 2x 9
