6 (3x^2 - 4x + 4) - 5(3x^2 - 2x + 3)=
(-2x) . (x^3 - 2x^2 + 3x + 2)=
3 (x^2 - 2x - 1) - 2 (x + 5)=
(-4) . (2x^2 - 5x - 1)=
2 (3x - 1) + 3 (x + 2)=
5 (x - 2) - 2 (2x + 1)=
4 (2x^2 - 5x + 3) - 3 (x^2 + x + 1)=
5x^2 - 23x + 9
9x + 4
-2x^4 + 4x^3 - 6x^2 - 4x
3x^2 - 8x - 13
x - 12
3x^2 - 14x + 9
- 8x^2 + 20x + 4
