A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

For what values of x is the rational expression below undefined? x-7/2x^2-32? a.2 b.-2 c.-4 d.-7 e.7 f.4

  • This Question is Closed
  1. freckles
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    solve the bottom=0 2x^2-32=0 (I assume you meant (x-7)/(2x^2-32)

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

    you also need to factor first before solving.

  3. Ehsan18
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its option c and f

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

    d

  5. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    In your expression, the only thing that can cause an undefined value is division by zero. Therefore, if the denominator of the expression equals zero, you'd be dividing by zero, which is an undefined operation. In order to find which values of x would cause division by zero, set the denominator equal to zero, and solve that equation for x. Those values of x cause the expression to be undefined. (Hint: there may be more than one answer.)

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

    don't pay attention to the direct answer people... just follow what me and the 99ers are saying

  7. 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.