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Solve for X

  1. Oct 10, 2006 #1
    Solve for X:

    [tex]3(2)^x = 4(^x^+^1)[/tex]

    I did:

    [tex]xlog3(2)=(x+1)log4[/tex]

    and got the wrong answer
     
    Last edited: Oct 10, 2006
  2. jcsd
  3. Oct 10, 2006 #2

    Hootenanny

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    You do know that your calculator can only handle logarithms to the bases e or 10?
     
  4. Oct 10, 2006 #3
    yea so u gotta find x
     
  5. Oct 10, 2006 #4

    arildno

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    Why do you believe:
    [tex]\log(3*2^{x})=x\log(3*2)[/tex]????
     
  6. Oct 10, 2006 #5
    the way i wrote it, I used the logarithm law...
     
  7. Oct 10, 2006 #6

    arildno

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    No you didn't. You used your own recently invented logarithm "law"

    Tell me how you misapplied the correct logarithm laws.
     
  8. Oct 10, 2006 #7
    if thats not the way then how? its because of that stupid 3 in front
     
  9. Oct 10, 2006 #8

    arildno

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    Correct!
    It's because of that stupid 3 in front!

    Now, if you have two numbers a,b, what can you say about:
    [tex]\log(a*b)=??[/tex]
     
  10. Oct 10, 2006 #9
    god damnit got the wrong answer again...

    I thought u meant... [tex]loga+logb[/tex]
     
  11. Oct 10, 2006 #10

    arildno

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    Correct! So, if [itex]a=3, b=2^{x}[/itex],
    what do you get on the right-hand side of your equation when you take the log?
     
  12. Oct 10, 2006 #11
    Nevermind I Got It!!! Thanks You...i"m A Genious!
     
  13. Oct 10, 2006 #12
    haha court <3
     
  14. Oct 10, 2006 #13

    arildno

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    There WAS a post by courtigrad, I KNEW IT! He deleted it way too fast for me. :frown:

    What was it about??
    I will not rest until I find out..
     
  15. Oct 10, 2006 #14
    it was just a test... to see what words are blocked out.
     
  16. Oct 10, 2006 #15

    arildno

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    *****, ****, **** and so on?
     
  17. Oct 10, 2006 #16
    yes. just an experiment
     
  18. Oct 10, 2006 #17

    arildno

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    What were the words, did they get blocked?
     
  19. Oct 10, 2006 #18

    arildno

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    Definite need of filter improvement.
     
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