7 4x 2 9 3x 1 July 8, 2019 16 32 64 128 2 4x 9 7 5x 3x 10 5 4x 7 )- 2 3x 1 )= 9 2x 5 )( 3x 7 )+ 2 4x 9 )( 2x 11
