SOLUTION: Mutiply and simplify: (4-3 square root 2) (5+2 square root 2)

Question 135223: Mutiply and simplify:
(4-3 square root 2) (5+2 square root 2)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(4-3 square root 2) (5+2 square root 2)
----------------------------
Use FOIL:
F: 4*5=20
O: 4*2sqrt2 = 8sqrt(2)
I: 5*-3sqrt(2) = -15sqrt(2)
L: -3sqrt2 *2sqrt2 = -6*2 = -12
---------------------------------
Add them up to get:
8-7sqrt2
==========
Cheers,
Stan H.
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