1 a 2 b 2 2ab 2b July 8, 2019 16 32 64 128 A 2 b 2 2ab 2a 2b 1 A b 6 2 a 2 b 2 1 2b 2ab 2a solution 1 a 2 2bc 1 b 2 2ac 1 c 2 2ab 2 a 1 b 1 2a + 1 2b
