X 2 5 2x 7 9 3 July 8, 2019 16 32 64 128 X 1 2 x 2 3 2x 5 7 9 0 9 3x 7 )- 5 x 2 )-( 2x 5 2x 7 (- 3 x 2 1 9 )( 3x 5 18 7 2x 3 )+ 2 x 1 )- 5 x 9 )= 3x 10
