A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

14x^3-35x^2+18x-45 Factor by grouping I got the answer that like looks like the problem is that right

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

    what's grouping? so many questions so few answers

  2. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    looks like you can use 5 and 2 to start with..

  3. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (14x^3+18x)+(-35x^2-45)

  4. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    2x(7x^2 +9) +-5(7x^2+9)

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (2x-5) (7x^2+9) then

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

    I think grouping mean taking the polynomial and grouping them together and solved I am not sure that is what I am here for is to get help with my math.

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

    \[\int\limits xdx\]

  8. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    well, I got it down to a linear and a irreductile quad :)

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

    well i don't know how to do it :(

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

    Hi Collegegirl2010, Factoring by grouping is tricky because there is no unique way to proceed. It is pretty my trying this and that and hopefully you see how the expression factors out. It is not easy to explain it, it is easier to show and after seeing a few examples you start to get the idea. The key step is grouping. But again, there are very many ways to group -- you have to use your intuition -- after a few problems you will see what to do. amistre64 showed how to do this example. Just try to follow the steps and check if the steps make sense. then try to repeat those steps on a different example. Hope this helps

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

    So what is the answer that I am looking for

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

    Grouping in this arena means taking groups of elements of the expression and foctorise them. They are well grouped already to do so. 14x^3-35x^2+18x-45 when grouped becomes ... (14x^3-35x^2)+(18x-45 ) now factorise each bracket 7x^2(2x - 5) + 9(2x - 5) (2x - 5) is a clear factor and the other one is construcrted from the elements outside of brackets ... (7x^2+ 9) giving the final answer ... (2x - 5)(7x^2+ 9) I hope that is clear for you.

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

    ANY PROBLEMS WITH THE EXPLANATION JUST ASK.

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

    Thanks these are so confusing I actually hate that I am having trouble learning them.

  15. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    grouping can be a pain, if you aint got an eye for it it an be discincerting

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

    Ciao Amistre come va?

  17. 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.