2x 3 3x 2 4 ) ( 6x 3 x 2 5x July 8, 2019 16 32 64 128 2x 3 3x 2 4 )+( 6x 3 x 2 5x 2x 4 6x 3 x 2 5x 4 5x 3 4x 2 3x 7 3x 2 x 4 6x 2 )-( 15x 4 2x 3 6x 2 5x 3