A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

What are the solutions of the equation 9x^4 – 2x^2 – 7 = 0? Use u substitution to solve.

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @GIL.ojei

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

    @butterflydreamer please help

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

    |dw:1440596622184:dw|

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

    factorise? sorry i suck at math lol

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

    have you learnt factorisation yet?

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

    no i dont think so

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

    so you haven't learnt the thing with the two brackets? for e.g. x^2 - 3x- 4 = (x + 1 ) ( x - 4 )

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

    no :(

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

    .... then... i'm not sure how you are meant to solve this if you haven't learnt how to factorise yet D:

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

    ikr its on this big test thing and if i make a 100 i get to skip the whole class or if i make a 80 skip 80% of the class

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

    hmm.. you should really learn how to factorise first or else it'll be pretty hard to explain this question... :( sorry

  12. 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.