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  • Hey can you help me figure out y=x^2-3x-28?
  • Sure! First write down the problem. Then set up the parenthesis.
  • Ok... is 0=( )( ) correct?
  • Right on! Next you will factor x^2!
  • Like this? 0=(x )(x )?
  • That's it! You are starting to get the hang of this!Now is the hard part.
  • Find the factors of 28 that subtract to -3.
  • So 0=(x+4)(x-7)!
  • That's exactly right! Almost done. Set your factors equal to zero.
  • Ok... x+4=0 and x-7=0
  • Yay! Now all you have to do is solve!
  • So the answer is, x=-4 and x=7!
  • Right you are! You are a pro at this now!
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