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!

Factorisation question

  1. Nov 5, 2006 #1
    i know i totally sux so can anyone help me? thx

    factorise x^3 - 2x^2 - 5x + 6
     
  2. jcsd
  3. Nov 5, 2006 #2

    arildno

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Find a zero for your expression.
     
  4. Nov 5, 2006 #3
    i am too retarded:rofl: , can u show me a step by step please
     
  5. Nov 5, 2006 #4
    Yep and you should start by "guessing a number" that is either (-1,1,2,-2,3,-3,6,-6). Why these numbers ? Well 6 can be divided by these numbers. Let's say that number is 6. Then perform an Euclidian devision in which you devide the given expression by (x - 6). What you get is an expression of second degree in x times (x-6) equals the given expression. This should get you started

    marlon
     
    Last edited: Nov 5, 2006
  6. Nov 5, 2006 #5

    arildno

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Don't bother to help OP, marlon.
    In another thread, he has refused even to do a single thing on his own with the expression 18t^2-2.

    He is just after having his homework done for him.
     
  7. Nov 5, 2006 #6
    Opps did not know that. Thanks for the advice, besides enough info has been given.

    regards
    marlon
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Factorisation question
  1. Factorising Problem (Replies: 3)

  2. Factorise please (Replies: 11)

  3. Factorising problem (Replies: 27)

Loading...