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Destinyyyy

  • one year ago

Can someone explain the answer... Evaluate Radical Expressions

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  1. Destinyyyy
    • one year ago
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    Evaluate-- (1/81)^ -1/4

  2. Destinyyyy
    • one year ago
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    I know that the correct answer is 3.. I got 9.. I can show my work if you want

  3. Destinyyyy
    • one year ago
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    @pooja195

  4. xapproachesinfinity
    • one year ago
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    3^4=81 as my hint

  5. Destinyyyy
    • one year ago
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    Huh?? O.o

  6. xapproachesinfinity
    • one year ago
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    Realize that (1/81)^-1/4=(81)^1/4

  7. Destinyyyy
    • one year ago
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    Yes I know that

  8. xapproachesinfinity
    • one year ago
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    Them you are good I just told you 81=3^4

  9. xapproachesinfinity
    • one year ago
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    So why do you get 9

  10. Destinyyyy
    • one year ago
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    If your saying 3^4 is the answer that is incorrect

  11. xapproachesinfinity
    • one year ago
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    No iIdidn't say it is the answer just one step before the answer

  12. xapproachesinfinity
    • one year ago
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    Why did I make it 3^4 if you think about it

  13. Destinyyyy
    • one year ago
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    (1/81)^-1/4 = 1/(1/81)^1/4 = 1/^4square root 1/81 --> square root 1/81 = 1/9 1/square root 1/81 = 1/ (1/9) = 1*9/1=9 Where did I go wrong? I followed the example

  14. xapproachesinfinity
    • one year ago
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    The answer is 3 like you said I'm just giving the why it is the answer

  15. Destinyyyy
    • one year ago
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    Oh.. Um not sure

  16. xapproachesinfinity
    • one year ago
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    Lol incorrect footsteps that's why it is wrong

  17. Destinyyyy
    • one year ago
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    How? I followed the example that I was given

  18. xapproachesinfinity
    • one year ago
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    Didn't I jut wrote (1/81)^-1/4=(81)^1/4 So we have (3^4)^1/4

  19. xapproachesinfinity
    • one year ago
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    I thought you understood that step

  20. Destinyyyy
    • one year ago
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    I understand changing -1/4 to 1/4... I did that in the first step.

  21. xapproachesinfinity
    • one year ago
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    Now you have something like (a^n) ^m Which is a^(nxm) rule

  22. xapproachesinfinity
    • one year ago
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    You did but you didn't flip the fraction

  23. Destinyyyy
    • one year ago
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    What?? Can you show me your work? I dont understand what your saying.. I dont know what this is "Now you have something like (a^n) ^m Which is a^(nxm) rule "

  24. xapproachesinfinity
    • one year ago
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    But then you did that in the end however 9 is incorrect since 81=9^2 You used the wrong exponent to simplify

  25. xapproachesinfinity
    • one year ago
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    You should have used 3^4 not 9^2

  26. xapproachesinfinity
    • one year ago
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    That's exponent rule my dear

  27. Destinyyyy
    • one year ago
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    Okay... What I did like the example was square root 81 = 9.. So Im suppose to ignore square root and do 3*3*3*3= 3^4

  28. xapproachesinfinity
    • one year ago
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    Even if you used 9^2 You still end up with (9^2)^1/4=9^1/2=3

  29. xapproachesinfinity
    • one year ago
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    It is ni5 square root it 4th root

  30. Destinyyyy
    • one year ago
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    Um sure... I figured out what you were saying above but honestly your just confusing me.. Thanks for the help I think

  31. xapproachesinfinity
    • one year ago
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    Sorry I couldn't help more since I'm in the phone otherwise I would try to before precise

  32. Destinyyyy
    • one year ago
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    Yes Im not suppose to do square root just the fourth power like my other problems.. The example should have shown that.

  33. xapproachesinfinity
    • one year ago
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    Try to be precise *

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