anonymous
  • anonymous
when do you and when do you not use FOIL for radical equations? look at this video where the guy uses FOIL http://www.youtube.com/watch?v=LY8VBsLf-4M and for equations like √x+8=√3x+8 you would not use FOIL why is this?
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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slaaibak
  • slaaibak
FOIL is used when two brackets should be multiplied with each other. This is not the case here. You would only need subtraction and division.
anonymous
  • anonymous
you only need subtraction and division for what? are you saying that the guy shouldn't have used foil ?
anonymous
  • anonymous
No, he is saying that you only need that for your expression.

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anonymous
  • anonymous
thanks i get it i guess i'm just really sleepy right now no duh

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