9 9 x 9 6 July 8, 2019 16 32 64 128 9 x 9 )=- 63 9 x 9 62 X 9 6 or 2x 9 9 9 x 7 )- 6 9 2 x 9 9 × 9 9 x 8 = 9 x9=