2)-2 5(10a - 1) 3 8(5a-3) July 8, 2019 16 32 64 128 2)-2 5(10a - 1) + 3 8(5a-3) 1) 3a(- 8) 2) - 5 * 3/10 * b 2 - 3 5a=1 5a