Question

$(3 + \sqrt{3)(3 - \sqrt{3}$
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Answer 1

Answer:

$= (3 + \sqrt{3 } ) \: (3 - \sqrt{3} )$

$= (9 - 3 \sqrt{3} + 3 \sqrt{3} - 3)$

$= (9 - 3)$

$= 6$

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