A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Using Descartes’ rule of signs, which statement about this function is true? f(x)= x4 – 2x3 + 4x2 – 2

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

    A. It will have four or two positive real zeros and one negative real zero. B. It will have one or three positive real zeros and one negative real zero. C. It will have one positive real zero and one negative real zero. D. It will have four or two positive real zeros and one or three negative real zeros. E. It will have four or two positive real zeros and two or zero negative real zeros.

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

    count the no. of sign changes in f(x) it has ?positive real zeros count the no. of sign changes in f(-x) it has ? negative real zeros.

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

    i don't understand

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

    |dw:1435088548129:dw|

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

    Thank you! :D

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

    yw

  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.