Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

math0101

  • 2 years ago

What am I doing wrong here? (5x^2 - 5) / (x - 1) = 5x(x - 1) / (x - 1) = 5x The answer should be 5(1 + 1)

  • This Question is Closed
  1. robinfr93
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    answer should be 10??? O_O

  2. math0101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    5(x+1) Sorry, typo!

  3. Callisto
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (5x^2 - 5) / (x - 1) = 5(x + 1) / (x - 1) ________ The underlined part is wrong. 5x^2-5 Take out the common factor 5 => 5 (x^2 -1) Factor (x^2-1) using the identity \(a^2-b^2 = (a+b)(a-b)\) Can you try it again?

  4. Callisto
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Oops sorry! The underlined part should be 5(x-1)

  5. math0101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Aha, got it! Thanks

  6. Callisto
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Welcome :)

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.