Graad 10 - Nog Oefeninge.
Oplos van kwadratiese vergelykings
Los die volgende kwadratiese vergelykings op:
1. x² – 1 = 0
2. y² – 4 = 0
3. a² – 9 = 0
4. b² – 16 = 0
5. c² – 25 = 0
6. d² – 64 = 0
7. m² – 121 = 0
8. n² – 289 = 0
9. a² – 784 = 0
10. 36 – p² = 0
11. 49 – q² = 0
12. 81 – s² = 0
13. 625 – t² = 0
14. 169 – v² = 0
15. 324 – b² = 0
16. x² – 8 = 1
17. y² – 4 = 21
18. x² – 8 = 73
19. y² - 2,25 = 0
20. a² – 11,56 = 0
21. b² - 7,84 = 0
22. 3x² – 12 = 0
23. 2a² – 50 = 0
24. 8b² – 32 = 0
25. 972 – 3m² = 0
26. 180 – 5n² = 0
27. 28 – 7v² = 0
28. x(x - 1) = 0
29. a(a + 1) = 0
30. b(b - 13) = 0
31. x² - 2x = 0
32. y² + 3y = 0
33. a² - 5a = 0
34. b² + 17b = 0
35. c² - 18c = 0
36. 21p – p² = 0
37. 25q + q² = 0
38. - s² + 33s = 0
39. –x² - 4x = 0
40. (x - 1)(x - 2) = 0
41. (y + 2)(y + 3) = 0
42. (a - 3)(a + 4) = 0
43. x² + 3x + 2 = 0
44. y² - 5y + 6 = 0
45. a² - 7a + 10 = 0
46. b² - 7b + 12 = 0
47. c² - 12c + 35 = 0
48. m² + 5m + 6 = 0
49. n² + 10n + 24 = 0
50. p² - 14p + 48 = 0
51. q² + 8q + 15 = 0
52. x² + 18x + 80 = 0
53. y² - 23y + 132 = 0
54. z² - 30z + 221 = 0