12/2/13 Challenge 1. 3x + 6x 2 – 10 + 9x 2 + 2x 2. 5x 2 y + 3xy – 8x 2 y + 6xy 3. 4.(2x 2 )(-4x 3 ) 5.2(x + 4) 6.7(12 + 3x) – 10 2x + 8 -8x 5 15x 2 + 5x.
