2 7x 1 3x 3 6x 2 July 8, 2019 16 32 64 128 3x 3 9x 2 2x )-( 7x 3 6x 2 1 6x 3 2x 2 8x 1 )-( 3x 3 7x 5 1 - 3(1 2 - 2x) = 7 6x - 6 6 1. (7 6 + 2x) - (3x - 6 4) 0
