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Integration (ln)

  1. Jan 11, 2009 #1
    1. The problem statement, all variables and given/known data

    Int(x^2-3x+2)/(x+1)dx



    2. Relevant equations



    3. The attempt at a solution

    I don't know where to start.
     
  2. jcsd
  3. Jan 11, 2009 #2

    jgens

    User Avatar
    Gold Member

    Start by dividing the two polynomials. The resultant expression will be much simpler.
     
  4. Jan 12, 2009 #3

    djeitnstine

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    Gold Member

    Instead of trying to factor simply divide it into 3 different equations i.e.


    [tex]\int \frac{x^{2}}{x+1}dx - \int \frac{3x}{x+1}dx + \int \frac{2}{x+1}dx[/tex]
     
  5. Jan 13, 2009 #4

    Mark44

    Staff: Mentor

    These aren't equations: they are expressions.

    A much simpler approach is to do as jgens advised, and divide x^2 - 3x + 2 by x + 1, using long division.
     
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