SOLUTION: I need to simplify the products and give exact answers. (sqrt5 + 2)(sqrt5 - 6)

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Question 309651: I need to simplify the products and give exact answers.
(sqrt5 + 2)(sqrt5 - 6)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(sqrt5 + 2)
(sqrt5 - 6)
--------------
5+2sqrt5-6sqrt5-12
-7-4sqrt5
-7-4*2.236
-7-8.944=-15.944 ans.