A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Please help me with 3 Polynomial Q's? Last 3 in Quiz. (2x^3+x^4-6x^2+11x-10)/(x^2+2-x) (x^5-10x^2-8)/(x-2) (x^2+81)/(x+3)

  • This Question is Closed
  1. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    divide them in long division process

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

    I know but I can't make it work with these problems.

  3. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait then

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

    why you can't make it work what is different?

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

    IDK why. I guess I don't understand it entirely? But with the latter two problems the answer is supposed to be relly long and it's a short problem....

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

    ok so you know how to do long division yes?

  7. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    first one is x^2+3x-5

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

    don't just give answers lol

  9. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    pls try second one on your own

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

    I don't just want the answer. I want the problem explained. I want to be able to understand it .

  11. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

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

    Yes I sort of know long division

  13. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    your first term is x^4 right

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

    yes i think so

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

    first rewrite that as (x^4+2x^3-6x^2+11x-10)/(x^2-x+2)

  16. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay now you see your divisor its x^2-x+2

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

    we want to put polynomial in an ascending order

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

    yes got it written down that way

  19. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x^2*x^2 =x^4 which is matching with your first term

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

    what?

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

    what?

  22. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so now multiply the entire x^2-x+2 with x^2

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

    then we put in long division |dw:1441770468769:dw|

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

    ok so you did this right?

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

    so where did you find the problem? exactly

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

    yes it is in that form. the problem is from my online school quiz

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

    |dw:1441770607055:dw|

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

    did you do this?

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

    wait how did you do that?

  30. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i told you multiply it with x^2

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

    how does that work though! i'm completely clueless here....

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

    well there an x^4 how to obtain that if you multiply by x^2 so you need an x^2 since x^2times x^2=x^4 we mainly focus on the leading terms

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

    the divisor (x^2-x+2) has a leading term of x^2 the one we want to divide has a leading term of x^4

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

    ok. I sorta see that now.

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

    this like you do with long division of numbers

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

    we mainly focus on the first number yes! so here we look at the highest power (leading term)

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

    that's why it is important to put the terms in order

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

    ok now proceed what you need to do you said you have dealt with long division before

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

    yup, now that i've had help getting it started it's going good. may still need help with the other two in a bit.

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

    it is the same concept for all of them

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

    for second you have x^5 what you need to multiply x by to get x^5?

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

    i know but the exponents are confusing me. everything i've done before had consecutivee numbers like 4,3,2. this is 5,2 etc.

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

    |dw:1441771163604:dw|

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

    well may be you need to relook at how you deal with exponents because if you didn't solve that problem you will always run into it again

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

    yeah i know. any online source you can link me to?

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

    there are lot of good sources, look at PatrickJMT channel in youtube or khan academy, ProfRobBob

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

    check lesson on exponents

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

    or perhaps mathfoudantion by NJwildberger

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

    foundation*

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

    all those have lecture on those areas

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

    ok, thanks.

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

    look at them and do some problem tell you master the concept then you ready to move on and deal with polynomial easily

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

    three properties you need to keep with you \(a^n\times a^m=a^{n+m}\) \(\Large \frac{a^n}{a^m}=a^{n-m}\) \(\frac{1}{a^n}=a^{-n}\) these play a key role i lot of mathematics areas

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

    when you deal x it is no different it is still the same properties applied over an over we just change variable. mathematics we don't mainly focus on the variable what is it rather we look at concepts (definition, theorem, etc)

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

    so if i have x^3.x^2=x^{3+2}=x^5

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

    do you get my point

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

    yes i see

  58. 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.