SOLUTION: (2√7-4√3)(4√+8√3) =??

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Question 163922: (2√7-4√3)(4√+8√3) =??
Answer by stanbon(57419) About Me  (Show Source):
You can put this solution on YOUR website!
(2√7-4√3)(4√7+8√3) =??
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Use FOIL:
F: 8*7 = 56
O: 16sqrt(21)
I: -16sqrt(21)
L: -32*3 = -96
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Combine to get: -40
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Cheers,
Stan H.