2(x + 4) 3(x – 7)
5(x + 2) 5(x – 2)
7(x + 3) 7(2x – 5)
5(3x – 4) 6(4x + 1)
6(4x – 1) 24x + 6
24x – 6 15x – 20
7x + 21 14x – 35
5x + 10 5x – 10
2x + 8 3x – 21
12(1 – x) 12 – 12x
2x(x + 2) 2x2 + 4x
3x(3 – x) 9x – 3x2