A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

is anyone good with rational exponents??

  • This Question is Closed
  1. toxicsugar22
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  2. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    maybe

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ahh can you help me with this equation: 3^1/3*9^1/3

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    probably

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    factor out the 1/3 because they are the same exponent so you have (3*9)^1/3 which is like the cube root of 27 which is 3

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i think the answer is 3sq rt of 3?

  7. toxicsugar22
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know tht

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    THANK YOU dancr_on_fire!! :)

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no problem... i always find it easier to think of factional exponents like roots

  10. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (3.3.3)^1/3 = 3, good job dancr

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how would i simplify 8^4/3

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    cube root of 8 is 2, 2^4 = 16

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay awesome!! what about...(8a^-6)^-2/3

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    with this you multiply your exponents first

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    multiply the exponents first: \[(8a^{-6})^{-\frac{2}{3}}=8^{-\frac{2}{3}}a^4\]

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    satellite73 you are the best! are you good with finding LCM?

  18. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    of polynomials

  19. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    in english \[8^{-\frac{2}{3}}\] means the reciprocal of the cube root of 8 squared. the cube root of 8 is 2. 2 squared is 4. and the reciprocal of 4 is \[\frac{1}{4}\] so answer is \[\frac{a^4}{4}\]

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    example?

  21. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay, 400x^2-4y^2, 20x^2+2^yx

  22. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you really mean lcm? because these are sums and difference. ok factor each one. \[400x^2-4y^2=4(100x^2-y^2)\]which is the difference of two squares. \[=4(10x-y)(10x+y)\]

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[20x^2+2y^2=2x(10x+y)\]

  24. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so for your least common multiple you need all the factors you see, not repeated!

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the factors are \[4\] \[x\] \[10x-y\] \[10x+y\]

  26. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okayyy i see! that makes sense!

  27. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    multiply together to get \[4x(10x+y)(10x-y)\] hope it is clear. same way to find lcm of two numbers.

  28. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you help me with writing this next one in radical form? 6x^3/2

  29. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes that makes way better sense now!

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[x^{\frac{m}{n}}=\sqrt[n]{x^m}\]

  31. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    for a fractional exponent, numerator is the power, denominator is the root.

  32. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[6x^{\frac{3}{2}}=6\sqrt{x^3}\]\]

  33. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    check out the paper i sent should make it clear.

  34. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay lemme check it out! thank you!

  35. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    are you always online? cause you are the biggest help! hopefully you can help me again soon!

  36. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i am often here these days practicing my latex. if you want you can email me at satellite73.openstudy@gmail.com

  37. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    perfect! i am trying to finish an online math class by tomorrow in order to be able to graduate...i have about 70% more to complete! so youre a big help!

  38. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.