2 (- 7 4x )-( x 10 July 8, 2019 16 32 64 128 4x 7 x 2 10 2 3x 5 2x 2 x 7 )+( 4x 2 )= 10x 2 x 7 )- 10 12 4x 2 5x 7 )+ 4x 4 10.5 x X 2 2x 7 4x 10 4x 5 )( x 7 )- 4x 2 10x 9 2x 7