+ 0x – 289 = 0
6. x
– 6x – 160 = 0
7. x
+ 1x – 30 = 0
8. x
– 2x – 120 = 0
9. x
– 14x + 40 = 0
10. x
+ 7x – 18 = 0
11. x
– 6x – 160 = 0
12. x
+ 3x – 10 = 0
13. x
+ 6x – 7 = 0
14. x
– 20x + 19 = 0
15. x
+ 5x – 50 = 0
16. x
– 8x – 9 = 0
17. x
– 17x – 38 = 0
18. x
+ 7x + 6 = 0
19. x
+ 17x + 30 = 0
20. x
– 28x + 160 = 0
21. x
+ 30x + 221 = 0
22. x
+ 0x – 16 = 0
23. x
– 2x – 120 = 0
24. x
+ 4x – 77 = 0
25. x
+ 14x + 45 = 0
26. x
+ 19x + 18 = 0
27. x
– 23x + 102 = 0
28. x
+ 9x – 90 = 0
29. x
+ 9x – 220 = 0
30. x