1 1 2 x 4 5 x 1 2 3 July 8, 2019 16 32 64 128 2 1 4 x 5 6 x 1 2 3 4 x 1 1 2 )- 5 x 1 3 2 )+( x 1 5 2 )= 0 2 1 4 x 2 1 3 x 1 5 7