SOLUTION: Someone please help me>>>>>> I need to learn how to simplify the following (3-sqrt4)*(3+sqrt4) Thanks

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Question 35436: Someone please help me>>>>>>
I need to learn how to simplify the following
(3-sqrt4)*(3+sqrt4)
Thanks

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
I'm not sure how you were supposed to do this, but here is the easy way. Because the square roots are perfect squares, you can simplify each one of them!!

+%283+-+sqrt%284%29%29+%2A%283+%2B+sqrt%284%29%29+
+%283-2%29+%2A%283%2B2%29
+1%2A5
5

If you need to FOIL these out, I have a great lesson plan on FOILING expressions with square roots--in color too.

R^2 at SCC