A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Anguyennn

  • one year ago

How do you simplify this polynomial expression? -2(3x-4)^2+(4-3x)(1+2x)? Please provide the answer step by step, thank you!

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

    Wow! So first off, you must distribute into the parentheses. So lets do one at a time. -2(3x-4) is saying -2 x 3x + -2 x -4. can you solve this?

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

    -6x + 8x

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

    great. Now that is raised to the power of 2 so it becomes -6x^2 + 8x^2 correct?

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

    Yes

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

    Would you add -6 to 8 which gives you 2 and then square it?

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

    Or do you have to do them separately?

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

    good so now lets move on... the next part is tricky but you have to pay attention. even though it says (4 -3x) its really saying 1 x 4 - 1 x 3x what is 1 x 4 - 1 x 3x?

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

    oh to answer your previous question, you wouldn't add them, because they aren't the same terms. one has an exponent and one doesn't

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

    |dw:1442005015282:dw|

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

    Wouldn't it still be the same thing?

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

    You're multiplying it by 1 which gives you the same rhing

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

    Thing*

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

    yes, but you have to understand the concept because that basically what this hole problem is

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

    so now we have -6x^2 + 8x^2 + 4 -3x the last part is basically the same thing. so now we have -6x^2 + 8x^2 + 4 - 3x +1 +2x right?

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

    so now what we do is we combine like terms.

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

    what are the like terms in the equation?

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

    Would it be -24x^2+53x-28

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

    not quite... whats -6x^2 + 8x^2? -6 + 8 = ?

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

    2

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

    2x^2. Correct. What would 4 + 1 be?

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

    5

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

    5 great! now what would -3x + 2x be?

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

    -1

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

    Great!! So in the end the final answer actually changes. You write you answer from highest to lowest degree of exponent. Answer: 2x^2 - 1x + 5

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

    do you get it?

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

    if not let me know and I'll try and explain it better.

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

    But for my answer book it doesn't say rhat

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

    Are you sure? what are the answer choices?

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

    it is written

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

    hmm?

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

    here I will take a picture of it and show it to you

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

    just hold on a sec please

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

    ok

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

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

    wow... I probably got it mixed up explaining it to you.Let me solve it on paper and then I'll post my steps and solution ok? give me one minute

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

    thank you so much! yeah I got super confused as well

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

    1 Attachment
  38. Anguyennn
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    that is the answer

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

    wow... I have no idea what I did wrong. I usually always get these right!!!!

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

    I apologize that wasn't much help!

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

    That is ok! I just don't know how to do it haha

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

    hahah, looks like i need more practice!

  43. Spring98
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    don't forget to close this question if it is already answered!!:P

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

    but it wasn't answered yet

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

    I am not sure how to do this, please help!! and thank you

  46. Spring98
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but sombody has already helped you and i think that person explained good enough this is open STUDY not some answer sight. Yes we can help you but you have to figure out the answer ur self.

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

    You need to use FOIL/the distributive property. Then combine like terms |dw:1442007209485:dw|

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

    @Spring98 chill. the answer above wasn't right

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

    yes I know that, if you dont want to give me the answer that is ok. but I need help to know how to do it on my own the next time

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

    @Anguyennn does what I posted make sense?

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

    I am just viewing it right now

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

    please hold

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

    yes! I understand it now. thank you so much would you have to use the foil method for the next question as well?

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

    yes

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

    you're welcome

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

    @peachpi thank you!

  57. 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.