7 2 a 1 )- 3a 5a July 8, 2019 16 32 64 128 7 2 a 1 )- 3a 5a and check Solve 7 2 a 1 )- 3a 5a 3a 4 5a 7 2 a 1 A 1 2 3 4 5 6 3 2a-7-7(2 1а-0 3)
