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

Lukecrayonz

How many imaginary and real zeros the function have? f(x)=x^4+12x^3+37x^2+12x+36

  • one year ago
  • one year ago

  • This Question is Closed
  1. ganeshie8
    Best Response
    You've already chosen the best response.
    Medals 0

    Descartes rule of signs, first find out # of positive and negative real zeroes

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

    Is it 4 imaginary?

    • one year ago
  3. ganeshie8
    Best Response
    You've already chosen the best response.
    Medals 0

    u got 0 positive roots, and 4/2/0 negative zeroes is it ?

    • one year ago
  4. ganeshie8
    Best Response
    You've already chosen the best response.
    Medals 0

    if u see 4 sign changes in f(-x), then there CAN be 4 or 2 or 0 negative zeroes.

    • one year ago
  5. ganeshie8
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1349376159150:dw|

    • one year ago
  6. ganeshie8
    Best Response
    You've already chosen the best response.
    Medals 0

    thats one set of possible # of roots, we need to decrease -ve zeores by 2, and find other possible sets.

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

    What does your question say exactly? Are you supposed to identify how many or just the possible combinations?

    • 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.