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Another limit problem

  1. Feb 25, 2008 #1
    lim sqrt(x^2 + x) - x as x approaches infinity

    Not sure what I need to do. I tried to make it into a fraction so I could apply L'Hospital's rule but I didnt' get anywhere with that. Any ideas?
  2. jcsd
  3. Feb 25, 2008 #2


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  4. Feb 25, 2008 #3
    Yeah like arildno suggested you need to rationalize the expression by multiplying with what post #2 suggests!
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