SOLUTION: simplify ( 4- radical 5)(2+ radical 5)

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Question 299435: simplify
( 4- radical 5)(2+ radical 5)

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(4- radical 5)
(2+ radical 5)
--------------------
8-2SQRT5+4SQRT5+0
8+2SQRT5
2(4+SQRT5) ANS.