2a 2 4 5a 3a 2 7 July 8, 2019 16 32 64 128 (- 3a 3 2a 2 4 )+( a 3 3a 2 5a 7 How much does 2a 2 5a 4 exceed 3a 3 5a 2 7a 9 7a 2 5a 3 3a 2 2a 4
