## MTALHAHASSAN2 one year ago Need help!! Log base 4 ^(x-1) + Log base 4^(x+2)=1

1. MTALHAHASSAN2

|dw:1437802519312:dw|

2. MTALHAHASSAN2

|dw:1437802735773:dw|

3. MTALHAHASSAN2

is it be like that?

4. anonymous

|dw:1437802870264:dw|

5. anonymous

solve 4=x^2+x-2

6. MTALHAHASSAN2

but if there is not a 4 then what would it be

7. MTALHAHASSAN2

log 1 is 0

8. MTALHAHASSAN2

|dw:1437803295258:dw|

9. MTALHAHASSAN2

know how can we do this one

10. MTALHAHASSAN2

there is not any 4

11. anonymous

then the base is 10

12. UsukiDoll

$$\color{blue}{\text{Originally Posted by}}$$ @Deeezzzz solve 4=x^2+x-2 $$\color{blue}{\text{End of Quote}}$$ can we get back on topic with the original question?

13. anonymous

14. anonymous

any exponent to the zero power is 1 so the log (1) of any base is 0

15. anonymous

Are you lost?

16. MTALHAHASSAN2

|dw:1437806532326:dw|

17. MTALHAHASSAN2

what would the answer for this one!!

18. MTALHAHASSAN2

@Deeezzzz

19. MTALHAHASSAN2

20. MTALHAHASSAN2

@Mertsj

21. anonymous

|dw:1437807978796:dw|

22. mathmath333

@UsukiDoll

23. UsukiDoll

:/

24. MTALHAHASSAN2

then it is be a=x

25. mathmath333

this is ur question ? \large \color{black}{\begin{align} \log_{4}(x-1) + \log_{4}(x+2)=1 \end{align}}

26. MTALHAHASSAN2

no

27. MTALHAHASSAN2

|dw:1437814133126:dw|

28. MTALHAHASSAN2

this one

29. anonymous

30. mathmath333

yes 0

31. MTALHAHASSAN2

ok thanks

32. MTALHAHASSAN2

wait but how you get 0

33. MTALHAHASSAN2

|dw:1437814378900:dw|

34. MTALHAHASSAN2

log a^a is 1

35. anonymous

|dw:1437814379263:dw|

36. anonymous

Yes log base a (a) =1

37. MTALHAHASSAN2

so log 1 is 0

38. MTALHAHASSAN2

right

39. anonymous

yes

40. MTALHAHASSAN2

41. MTALHAHASSAN2

|dw:1437814511192:dw|

42. MTALHAHASSAN2

this be 4^1 right

43. MTALHAHASSAN2

i have a question what happen to log

44. MTALHAHASSAN2

is it be log base 4^1 or 4^1

45. anonymous

well u used its def|dw:1437814616977:dw|

46. MTALHAHASSAN2

but is 4^1 where the loag goes

47. anonymous

log is the inverse of exponents so we used its definition

48. anonymous

What math are u in?

49. MTALHAHASSAN2