4 c 1 )- 7 c 5 )- 2 3c 8 July 8, 2019 16 32 64 128 - 7(3 - 4c) + 14(0 5 + 2c) = ( 5 c + 4 ) ( 3 c − 1 ) − 1 5 c 2 = 1 7
