X 4x 1 )-( 2x 3 2 =- 9 July 8, 2019 16 32 64 128 4x 1 )( 3 x )=( 12x 3 9x 2 21x 3x 4x 5 2 2x 3 )( x 1 )= 9 3 x 2x 9z 2 4x 1 4x 2 2x 1 9 3 x 4 4x 1 3 15x 3 (- 1 2x 3 2 9 x 6 7 4x 3 )- 9 2x 1 )= 2 x 9