A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

Solve this equation. (2x^3-2x^2-24x/2x^2-8x) = -1

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

    Okay so, we take 2x common out from both numerator and denominator, so: 2x(x^2-x-12)/2x(x-4) = -1 Cancel 2x from both numerator and denominator so we get x^2-x-12/x-4 = -1 Take x-4 to the other side and multiply by -1. x^2 -x -12 =-x +4 Cancel -x from both sides since it is common. x^2 -12 = 4 Take -12 to other side, x^2 = 4+12 x^2 = 16 Or by taking square root: x= 4 is the answer.

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

    Many thanks! Now I know how to solve these type of problems.

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

    No problem bro! :D

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

    8D

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

    Im kind of struggling with this one, think you could help? ^^ (5x^3+20x^2-105x/5x^2-15x) = 0

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

    Let's see.. Take 5x out common from numerator and denominator and cancel it. We now have: x^2 +4x -21/x-3 =0 Remove the denominator because anything multiplied by 0 is 0. So, x^2 +4x -21 = 0 x^2 +7x -3x -21= 0 (x+7)(x-3) = 0 x = -7 or x= 3

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

    Brilliant! kk so I was on the right track xD Thanks again dude

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

    Always a pleasure.

  9. 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.