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

kirk.freedman Group Title

Are a rational expression and its simplified forms equivalent? Provide mathematical examples to support your opinions. Somebody please explain!

  • one year ago
  • one year ago

  • This Question is Closed
  1. DeoxNA Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    Just use an example you know is true: \[\frac{ 4 }{ 8 } x = \frac{ 1 }{ 2 } x \] Multiply both sides by two and you get x=x

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

    You could forget the x part is you think of x=1, but it will work for any x.

    • one year ago
  3. kirk.freedman Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Hmm.. okay that seems more simple than I thought, thanks!

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

    Anytime :)

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

    wait wait wai.. Isn't a rational expression a ratio of two polynomials?

    • one year ago
  6. kirk.freedman Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Wouldn't it have to be something like (x^2 +5)/(x+2)?

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

    No... rational means it can be expressed as a fraction with integers on top and bottom

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

    Both a ratio of polynomials and of integers are a "rational expression", and, in any case, you can use the same example to prove it for polynomials as well.

    • one year ago
  9. kirk.freedman Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, okay thanks! :)

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

    What about ((x^2)+10)/(x+5)=x+2?

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

    x+2 is the reduced form, but it doesn't turn out to x=x does it?

    • 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.