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Limits of polynomials at infinity

  1. Feb 27, 2008 #1
    Help, I am infinitly confused :)

    When solving the limit for this type and factoring the largest power of a variable in the polynomial in order to make its coefficient become a limit multiplied by another limit of Infinity I get lost. I just do not understand how (Infinity)(5 + Infinity + Infinity -Infinity) = (Infinity)(5). Where did all the other infinities go??

    I hope that makes sense. There is much better examples on the first few problems on this page http://tutorial.math.lamar.edu/Classes/CalcI/LimitsAtInfinityI.aspx
  2. jcsd
  3. Feb 27, 2008 #2
    Ahh, I found what I was doing wrong. lim(1/x) as x->Inf = 0 not Inf

    I am new to this can you tell :P

    0 + 0 + 0 + 0 is so much more understandable.
  4. Feb 27, 2008 #3
    what exactly are you asking for????
  5. Feb 27, 2008 #4
    I think he solved his problem himself.:smile:
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