1 2 x 6 2x 7 )- 4 July 8, 2019 16 32 64 128 2x 6 )( 7 4x )=( 2 x )( 8x 1 )+ 15 A x 1 2 1 b 7 2x 6 49 2x 7 1/2 x 7 x 6