SOLUTION: Mulitphy and simplify: ( 3 square root 5 - 4) (2 square root 5 + 2)
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Question 63639
:
Mulitphy and simplify:
( 3 square root 5 - 4) (2 square root 5 + 2)
Answer by
stanbon(75887)
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3 square root 5 - 4) (2 square root 5 + 2)
Use FOIL:
F: 6*5=30
O: 6sqrt5
I:-8sqrt5
L: -6
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Add these to get:
= 24-2sqrt5
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Cheers,
Stan H.