Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

onegirl

  • 2 years ago

Simplify the numerator. You should get just 13. Show your work. f'(x) = 3(5x + 1) + -5(3x - 2) over (5x + 1)^2

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

    @Mertsj can u help?

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

    @tcarroll010 can u help?

  3. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Use the distributive property on: 3(5x + 1) + -5(3x - 2) Which is your numerator. a(c + d) = ac + ad You will get 2 terms that will cancel and 2 other terms that can be combined.

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

    okay can u show it?

  5. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That is now for you to show it. You should show your work now instead of me because that is sufficient help for you to at least start to try to solve it. Go ahead now. It's your problem so take ownership and do some work.

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

    okay

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

    let me try

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

    so for the first i got 15x + 3

  9. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That is good so far. So continue.

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

    ok so i gto 15x + 3 + -5x + 10 what do i do next?

  11. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You did well on the first half, but: -5(3x - 2) is not equal to -5x + 10 the "10" is right but concentrate on the "-5x". That is where you went wrong a little bit.

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

    okay

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

    so its 15x + 10 right?

  14. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You have -5 times 3x There is a negative sign involved. Always check your signs.

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

    so -15x + 10

  16. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes. So, your numerator is : 15x + 3 + -15x + 10 so far. So now, 2 of the terms will cancel and the other 2 can be combined.

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

    ok so -15x and 15x will cancel and we will combine 10 and 3 to get 13 :)

  18. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You got it! Great job! :-)

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

    thanks!

  20. tcarroll010
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    uw! Thanks for the recognition! Good luck in all of your studies! @onegirl

  21. 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.