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Homework Help: Really basic derivatives question

  1. Sep 27, 2011 #1
    it's just something thechnical

    let's say i have the function x2+3x+2

    when they say f(x+[itex]\Delta[/itex]x)

    is it (x+[itex]\Delta[/itex]x)2+2(x+[itex]\Delta[/itex]x)+2


    another way?
  2. jcsd
  3. Sep 27, 2011 #2


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    It's that. Except you have 3 in the first expression and a 2 in the second in the linear term. Typo, I guess?
  4. Sep 27, 2011 #3
    thanks lot and yeah, typo
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