5 2 3x )- 15 25 July 8, 2019 16 32 64 128 X /( x 5 3x 15 )/( x 2 )- 25 0 5 2x 7 )= 2 3x 15 )+ 25 2 5 10x 2 )= 3x 15 25x 8
