Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

jessica824

  • one year ago

how do you find the real cube roots of -64?

  • This Question is Closed
  1. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you cant , its a complex number if your going for root of it

  2. confusedstudent2012
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i think it will be 8 i

  3. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    nope

  4. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4i

  5. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4*4*4=64 but still thats a complex number

  6. confusedstudent2012
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes, i was thinking sqaure for some reason. 4i

  7. jessica824
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you!!

  8. confusedstudent2012
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but that's an imaginary number not a "real" root

  9. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ;)

  10. jessica824
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what about -27/216??

  11. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4 is cube root of 64 and since its -64 so its an imaginary number i never said its real

  12. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    n @jessica824 you can find it

  13. jessica824
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know how

  14. confusedstudent2012
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no, i wasn't saying you said anything. I was responding the the original question from the original poster where the person asked about a "real" root.

  15. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @itsmylife -4 should be the cube root of -64.\[\large (-4)(-4)(-4)=-64\] I'm not sure why you're thinking it would be complex, did you confuse it with the square root? :o\[\large (4i)(4i)(4i)=-64i\]

  16. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    aha my honest mistake thanks for correcting me @zepdrix

  17. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Happens to all of us c: those darn brain farts! heh

  18. itsmylife
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    lol :P

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.