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