(x+2)·(2x-1) - (3x-2) · (x-4)
(x+2)-(2x-1)-(3x-2)-(x-4)
x+2-2x+1 -3x +2 -x +4
x -2x -3x -x +2 +1 +2 +4
-5x +9
(x + 2) - (2x - 1) - (3x - 2) - (x - 4)
x + 2 - 2x + 1 - 3x + 2 - x + 4
- 5x + 9
