1 2 b =4b July 8, 2019 16 32 64 128 4b 1 )( b 2 B 2 4b 1 0 8 b 1 2 4b 4 1 4b 1 1 2 b 3 1 4b 2 1 2 b 4 12b 2 b 1 )= 6 4b 1 - 2 = 4 1 2 b+=4b
