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Homework Help: Simplifying a problem.

  1. May 26, 2010 #1
    -This is what I need to simplify.
    π((14-2x)/π)2

    -This is what I got.
    (196+4x)/(π2)

    -This is the solution.
    (196-56x+4x2)/π

    Really unsure of where that -56x is coming from in the solution.
     
  2. jcsd
  3. May 27, 2010 #2

    rock.freak667

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    Homework Helper

    this part
    ((14-2x)/π)2

    (a/b)n=an/bn

    so ((14-2x)/π)2 = (14-20)22
     
  4. May 27, 2010 #3
    The problem is that π((14-2x)/π)2 = n[(14-2x)2/n2] and not n[(142 + (-2x)2)/n2] the way you solved it.

    Edit: Got beat to it.
     
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