Question 80452
{{{(sqrt(18)sqrt(18)-sqrt(18)sqrt(8)+ sqrt(18)sqrt(8)-sqrt(8)sqrt(8))}}}[use the FOIL method to multiply]
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{{{(18-sqrt(18)sqrt(8)+sqrt(18)sqrt(8)-8))}}} [a radical raised to the second power will equal the value of the radicand]
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18-8 [subtract the middle term and it drops out]
10

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