1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Can this trinomial be factored?

  1. Sep 6, 2006 #1
    My math teacher put up the answers from yesterday's homework, and she put DNF for one of the answers, which I'm assuming means does not factor. But I'm pretty sure I found a way to factor it, here's the trinomial:

    3v^2 - 11v + 10

    I factored it and came up with the following:

    (3v - 5)(v - 2)

    Was my teacher just wrong, or did I make a mistake?
     
  2. jcsd
  3. Sep 6, 2006 #2
    well when its multiplied out it equals the same thing. maybe DNF means 'did not finish'...maybe she wanted the 3 factored out for some reason. ie: 3(v-5/3)(v-2)
     
  4. Sep 6, 2006 #3

    Hootenanny

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Nope, your factorisation looks good to me, I would agree with you that your polynomial does indeed factor as you have shown.

    Edit: I need to type faster!
     
  5. Sep 6, 2006 #4
    For the trinomial above, your answer is right.

    Edit: And I need to type faster than Hoot! :biggrin:
     
  6. Sep 6, 2006 #5
    that makes me the fastest!!
     
  7. Sep 6, 2006 #6
    Ok, thanks for the help.

    No, it wasn't my work that she put DNF on, she had an overhead screen, with all of the answers on it, and for that question, she simply put DNF.
     
  8. Sep 6, 2006 #7
    well i'd have to say she is mistaken
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Can this trinomial be factored?
  1. Factoring Trinomials (Replies: 2)

Loading...