3 2 x 2 5 1 3x 1 4 July 8, 2019 16 32 64 128 3 x 3 )- 2 2x 1 )+ 5 3x 1 )= 4 3 x 2 )+ 9 x 1 )+ 5 1 2x )+ 2 3x 4 5 3/5 x 1 4/21
