Follow the link below for the question, please show work so I can figure out how to do this also! Thanks!
http://www.flickr.com/photos/29312441@N0
What good is 10 points? Are those points redeemable for Euros or Yen? It never fails to amuse me.
In any event, the trinomial is not factorable, since there are no two numbers that have a product of 21 and a sum of -1.
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