If a b 2 3 c d 4 7 July 8, 2019 16 32 64 128 If a b 2 3 b c 4 5 c d 6 7 If a b 2 3 b c 4 5 c d 3 7 If a 2 3 b 4 6 c 7 4 and d ab If a b 2 3 b c 5 4 c d 3 7 find a b c d
