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Homework Help: Simple problem - cant spot my own mistake

  1. Nov 14, 2008 #1
    Solved, thanks Tedjin.
     
    Last edited: Nov 15, 2008
  2. jcsd
  3. Nov 14, 2008 #2
    You're mistake is in this part:

    x2 + (3x-100)2 = 10000
    10x2 - 600x - 9900 = 0

    You haven't expanded correctly.
     
  4. Nov 14, 2008 #3
    Quite the oversight.

    Thanks, Tedjin. I shall aptly punish myself.
     
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