Question 80412
(√3x+2)(√3x-2)
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Use FOIL and you will get the product which is the difference of two squares:
F: sqrt3x*sqrt3x = 3x
O: sqrt3x *-2 = -2sqrt3x
I: sqrt3x * 2 =  2sqrt3x
L: 2*-2       =  -4
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Add those up and you will get 
3x-4
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cheers,
Stan H.