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