SOLUTION: simplify the product (3 - 2√7)(3 + 2√7

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Question 258430: simplify the product
(3 - 2√7)(3 + 2√7
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
By using foil,we get
F: 9
O: 6sqrt(7)
I: -6sqrt(7)
L: 4*7 = 28
combining like terms, we get
9 + 28 = 37