2 x 9 10 x 5 8 July 8, 2019 16 32 64 128 2 3 x 9 10 x 5 8 4 5 6 x 2 9 10 x 1 8 8 7x 2 3x x 5 2x 9 x 10 9 x 8 = 2 x 9/10 2x 9 2 x-9 x+5