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