Question 87168
{{{((sqrt(3) +5)(sqrt(3) -3))}}} [use the FOIL method to multiply]
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{{{((3 - 3sqrt(3) +5sqrt(3) -15))}}}[combine like-radicals]

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{{{((3  +2sqrt(3) -15))}}} [combine like-terms (constants)]
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{{{((-12 +2sqrt(3) ))}}}