SOLUTION: Simplify (2 radical 3 + 5 radical 5) ( 3 radical 3 - radical 5)

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Question 62906: Simplify (2 radical 3 + 5 radical 5) ( 3 radical 3 - radical 5)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify (2 radical 3 + 5 radical 5) ( 3 radical 3 - radical 5)
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(2sqrt3 + 5sqrt5)(3sqrt3-sqrt5)
Use FOIL to get:
F: 6*3=18
O: -2sqrt15
I: 15sqrt15
L: -5*5=-25
Final Answer:
-7+13sqrt15
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Cheers,
Stan H.