Логарифмические уравнения.

Логарифмические уравнения.

1. log ₂ (2x-1)=3

2. log ₃ (2x+1)=2

3. log ₂ (x-3)=2

4. log ₄ (3x+0,25)= -1

5. log ₅ (5x+5)=2

6. log ₇ (3x+1)=1

7. log ₁₃ (5x-1)=2

8. log ₂ (3x+4)=6

9. log ₈ (7x-13)=0

10. log ₂ (37-5x)=5

11. log ₃ (3x+1)=1

12. 8log ₂ x=16

13. 1/2 log ₃ (x-2)=1,5

14. 2 log ₂₅ (x+1)=1

15. 3 log ₂₇ (5x+2)=3

16. 3 log ₆₄ (2x-4)=2

17. log ₃ (x-6)= log ₃ 5

18. log ₂₁ (x+12)= log ₂₁ 3

19. 2 log ₃ 2 – log ₃ (x-1) = 1+ log ₃ 5

20. log ₃ (2x+1)= log ₃13 +1

21. log ₅ (2x-3)= log ₅ (x-1)

22. log _0,5 (3x-1)=-3

23. 0,5 log ₂(3x-1)=3

24. - log ₇ (5-х)=log ₇ 2 - 1

25. 1/3 log ₃ (2x+1)=1

26. lg (x+3)=3+2 lg 5

27. log ₂ (2x+1)=log₂ 3+1

28. lg (4x-2)=5 lg 2 -3

29. lg (2-x)=2 lg 4-lg 2

30. log ₂ (7x-4)=2 + log ₂ 13

31. log ₂ (2x+1)=log₂ 3+1

32. log ₃ (12-5x)= 2

33. log ₃(4-3x) - log ₃ 2=2

34. lg (5x+2)=1/2 lg 36 + lg 2

35. log _1/2 (2x-1) – log _1/2 16 = 5

36. log ₇ (x²-2x-8)^1/2=1

37. log _1/2 (x²+4x-5)= - 4

38. log _1/2 (x²-5x+6)= - 1

39. log ₂ (x²-4x+4)=4

40. log ₅ (x²-3x+12)=1+log ₅ 2

41. log ₅ (x-1,5)= - log ₅ x

42. log ₂^1/2 (2x+2)= - log ₂^1/2x/4

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