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# VII.23. Ecuati de forma x² = a, a real

Rezolvati mai intai ecuatiile pe caiet.

1. x² %2b 6x %2b 9 = 0, S = { # }
, ,
2. S = { # }
-2;1, , ,
3. (x %2b 2)² = 9, S = { # }
0;3, , ,
4. S = { # }
-1;1, , ,
5. Determinat multimea solutiilor pentru fiecare ecuatie: ( tasati elementele in ordine crescatoare, separate prin ; si fara spatiu intre caractere)
0, , ,
6. x² = 81, S = { # }
-9;9, online quizzes , ,
7. 3(x - 1) - 2(4x %2b1 ) %2b 2(x² - 1) %2b 9 = 0, S = { # }
-V5;V5, , ,
8. x² = 0, S = { # }
-4;4, interactive , ,
9. S = { # }
-V3/3;V3/3, , ,
10. 3(x - 2) %2b x² %2b 2 = 0, S = { # }
-5/2;5/2, ESL , ,
11. x² - 4 = 12, S = {# }
-5;1, , ,
12. 3x² - 1 = 0, S = { # }
-4/3;2, , ,
13. (x - 1)(x %2b 2) = 0, S = { # }
1/3;5, , ,
14. (x - 1)(3x %2b 4) - (x - 1)(2x - 1) = 0, S = { # }
2, , ,
15. (3x - 1)² - 25 = 0, S = { # }
-3, , ,
16. x(x - 3) = 0, S = { # }
-4;1, , ,
17.
1/2;2, , ,
18. ECUATII DE FORMA x² = a, a real
-5;1, , ,
19. x² - 5 = 0, S = { # }
7- ec.de gr.2.JPG, , help students assimilate material ,
20. S = { # }
-3;3, , ,
21. (x %2b 2)² = (2x - 3)², S = { # }
-4/5;4/5, , ,
22. 4x² = 25, S = { # }
-4;6, , ,
23. x² = 1, S = { # }
-4;4, , ,
24. x² - 4x %2b4 = 0, S = { # }
-7;7, , ,