|
2. |
(10x + 12) + (6x + 20)
|
|
3. |
(19x2 + 12x + 12) + (7x2 + 10x + 13)
|
|
4. |
(17x2 + 20x + 11) + (15x2 + 11x + 17)
|
|
5. |
(-15x2 - 5x + 9) + (-6x2 - 19x - 16) + (-15x2 - 14x - 13) + (9x2 - 14x + 20)
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|
6. |
(-13x2 - 13x - 10) + (19x2 - 19x - 5)
|
|
7. |
(4x2 - 6x + 7) + (-19x2 - 15x - 18)
|
|
8. |
(-13x2 - 5x - 14) + (-14x2 - 20x + 8)
|
|
9. |
(20x7 - 10x6 - 9x5 - 14x4 + 18x) + (-6x6 - 12x5 - 9x4 - 9x)
|
|
10. |
(-20x2 + 13x - 4) + (11x2 - 13x - 10)
|
|
11. |
(-14x2 - 15x - 17) + (14x2 + 9x - 17)
|
|
12. |
(-10x6 + 18x3 + 13) + (7x6 - 7x2 + 17)
|
|
13. |
(11x2 + 5x + 6) + (18x2 + 17x + 17)
|
|
14. |
(4x2 - 19x + 15) + (-18x2 + 15x + 16)
|
|
15. |
(-7x2 + 14x + 17) + (19x2 - 6x - 20) + (-14x2 - 18x + 20) + (20x2 + 19x + 17)
|
|
16. |
(-14x7 + 19x6 - 17) + (5x5 - 10x4 + 18)
|
|
17. |
(9x6 - 4) + (10x5 - 15x4 + 14)
|
|
18. |
(-17x6 - 6x3 - 20x) + (-10x4 + 9x3 - 18)
|
|
19. |
(20x2 + 15x + 13) + (-19x2 + 17x + 5)
|
|
20. |
(5x6 + 9x3 - 6x) + (-9x7 - 20x2 - 6x)
|
|