SOLUTION: (3 + radical 5) (3 - radical 5)

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Question 134307: (3 + radical 5) (3 - radical 5)
Answer by edjones(7311) About Me  (Show Source):
You can put this solution on YOUR website!
(3+sqrt(5))(3-sqrt(5))
=-5-3sqrt(5)+3sqrt(5)+9
=4
.
Ed