9x 9 7x 5 July 8, 2019 16 32 64 128 9x 9 7x 5 180 9x 1 7x 9 5x 11 9x 5 9x 9 7x 3 18 x 9x 5 x =- 9 7x 8 9 x 8 = 9x 7
