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