1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Simplifying a problem.

  1. May 26, 2010 #1
    -This is what I need to simplify.

    -This is what I got.

    -This is the solution.

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


    User Avatar
    Homework Helper

    this part


    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.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook