1 2x 5 6x 6 July 8, 2019 16 32 64 128 1 6x 2 3 1 2x 5 6 6x 1 2x 5 4x 6 1 6x 5 6 1 2x 3 5 6x 7 )-( 1 2x 6 2x 1 4 6x 2 5 70x 6 40 2x 1 )( 6x 4 2 6x 5 )= 4 1/2 * (6x - 1) 1/2 x 6 x 5