9x 2 8x 4 July 8, 2019 16 32 64 128 9x 2 8x 4 0 1 9x 2 1 8x 4 9x 4 8x 2 1 0 8x 4 9x 2 2x 7 3 4x 9x 2 8x 2 7 (- 9x 2 4x 8x 2 8x 10 2 9x 8x 8 7x 49 7x 8x 2 9x 1 4 12x 16 3x 2 9x 8x 2 4x 4 9 x 8 = 2x 9