Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

countonme123

  • 2 years ago

help with polynomials?

  • This Question is Closed
  1. countonme123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (3AB+Asquared +Bsquared) + (4Bsquared - 3AB + 3Asquared)

  2. alexwee123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hunger games :D

  3. countonme123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    :)

  4. countonme123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    can you guys help me

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

    \((3AB + A^2 + B^2) + (4B^2 - 3AB + 3A^2)\) Add together like-terms. \(kA^2 + hA^2 = (k + h)A^2\), \(kAB + hAB = (k + h)AB\), etc.

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

    You can reorder the expression using the commutative and associative properties of addition (nothing multiplied to the parentheses, its just addition so we can remove them): \((3AB - 3AB) + (A^2 + 3A^2) + (B^2 + 4B^2)\) Then you just add the coefficients together. Makes sense?

  7. countonme123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it helps a bit

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

    Then by factoring: \((3 - 3)AB + (1 + 3)A^2 + (1+4)B^2\) Simplifying, we get \(0AB + 4A^2 + 5B^2 \\ = \mathbf{4A^2 + 5B^2}\)

  9. countonme123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yah thats right i get it thanks

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

    The less rigorous approach is pretty much just looking at the like terms, usually faster than doing the "pair the like terms, factor, and simplify" stuff: Once you simplify it to only addition and subtractions: \(\color{green}{3AB} + \color{purple}{A^2} + \color{red}{B^2} + \color{red}{4B^2} \color{green}{- 3AB} + \color{purple}{3A^2}\) The \(3AB\) and \(-3AB\) cancel, add coefficients of \(A^2\) and \(B^2\) terms You're welcome. :)

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

    Search OpenStudy
    • 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.