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

koli123able Group Title

Factorize x^4-12x^2-64=0

  • one year ago
  • one year ago

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

    64 = 8^2 right?

    • one year ago
  2. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    middle term breaking

    • one year ago
  3. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    breaking 12x^2

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

    (x^2-16)(x^2+4)

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

    ok .. : \[\large{x^4+4x^2-16x^2-64=0}\] right?

    • one year ago
  6. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    absolutely right

    • one year ago
  7. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    then factorize it again

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

    ok now .. \[\large{x^2(x^2+4)-16x^2-64=0}\] right?

    • one year ago
  9. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    (x^2-16)(x^2+4)

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

    (x^2-16)(x^2+4)= (x-4)(x+4)(x^2+4)

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

    right : \[\large{(a^2-b^2)=(a+b)(a-b)}\]

    • one year ago
  12. mathslover Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\large{x^2-4^2=(x+4)(x-4)}\]

    • one year ago
  13. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    x=+4,-4

    • one year ago
  14. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    the formula is right but i need to solve this without formula

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

    hoe do you know that????? x=+4,-4

    • one year ago
  16. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    x2=16 squaring x=+4,-4

    • one year ago
  17. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    then after that the hard part

    • one year ago
  18. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    using x+4=0

    • one year ago
  19. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry x2+4=0

    • one year ago
  20. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    x^2=-4 squaring x=+2i,-2i

    • one year ago
  21. hal_stirrup Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    you mean x^2+4=0

    • one year ago
  22. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah

    • one year ago
  23. koli123able Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    its done ok fine thanks for help every body

    • one year 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.