(- 4x 2 11x 7 )-( 5x 2 7x 9 July 8, 2019 16 32 64 128 2) 7 - 11x 9x - 2(5x + 7) 6-x 2(1-4x)-3(1- ) 7 - 11x 9x - 2(5x + 7) 6-x 2(1-4x)-3(1-3x) 2x 7
