2 7x - 1 3x 3 6x = 2 July 8, 2019 16 32 64 128 2 7x 1 3x 3 6x 2 3x 3 9x 2 2x )-( 7x 3 6x 2 1 6x 3 2x 2 8x 1 )-( 3x 3 7x 5 2x 7
