2 8 4 2 6 July 8, 2019 16 32 64 128 8 2 4 6 2 7 2 4 8 3 2 6 2 4 8 1 2 6 8 4 2 64 2 8 4 6 1 3 2 8 4 6 9 8 x 4 )= 2 6x 2 6 8 2 2 4 1 a 5 3 2 3x 2 )=- 4 8 6 2x 2 4 6 8 2 n