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