A 2 b 3 c 5 d 7 July 8, 2019 16 32 64 128 A b 2 3 b c 4 5 c d 6 7 A b 2 3 b c 4 5 c d 3 7 If a b 2 3 b c 4 5 c d 3 7 A b 2 3 b c 5 4 c d 7 8 a d A 3 2 b 7 6 c (- 1 2 d (- 5 6 ((a ^ 2 * b ^ 3)/(3c ^ 5)) ^ 4
