Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ValentinaT

Simplify 4√6/√30 by rationalizing the denominator. Please show steps!

  • 11 months ago
  • 11 months ago

  • This Question is Closed
  1. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\frac{ 4√6 }{ \sqrt{30} }\]

    • 11 months ago
  2. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks.

    • 11 months ago
  3. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{ 4\sqrt6 }{ \sqrt{30} } \times \frac{ \sqrt{30} }{ \sqrt{30} }\] \[\frac{ 4\sqrt6 (\sqrt{30}) }{ \sqrt{30}\times \sqrt{30} }\] \[\frac{ 4\sqrt{180} }{ 30 }\] \[\frac{ 24\sqrt5 }{ 30 }\] \[\frac{ 4\sqrt5 }{ 5 }\]

    • 11 months ago
  4. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    @kausarsalley could you help me one more time?

    • 11 months ago
  5. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    okay...what is the question??

    • 11 months ago
  6. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    \[(2\sqrt{5} + 3\sqrt{7})^2 \]

    • 11 months ago
  7. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    okay....the simplest way to expand is to go by this... \[(a+b)^2=a^2+2ab+b^2\]

    • 11 months ago
  8. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    It also says to justify each step? Does that mean I have to explain each step?

    • 11 months ago
  9. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    using that, \[(2\sqrt5+3\sqrt7)^2=(2\sqrt5)^2+2(2\sqrt5)(3\sqrt7)+(3\sqrt7)^2\]

    • 11 months ago
  10. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks.

    • 11 months ago
  11. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    its not done with simplifying..

    • 11 months ago
  12. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    or can you continue from there??

    • 11 months ago
  13. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, I was just saying.

    • 11 months ago
  14. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    I'm not sure what to do.

    • 11 months ago
  15. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    \[(2^2(\sqrt5)^2)+4\sqrt5(3\sqrt7)+(3^2(\sqrt7)^2\] \[20 + 12\sqrt{35}+63\] \[83+12\sqrt{35}\]

    • 11 months ago
  16. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    do you understand what i have done??

    • 11 months ago
  17. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    I think I might, is that the final answer?

    • 11 months ago
  18. ValentinaT
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks.

    • 11 months ago
  19. kausarsalley
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry for the late reply.... yw

    • 11 months ago
    • Attachments:

See more questions >>>

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.