Answer
$ \frac{6(3+\sqrt 2)}{7}$
Work Step by Step
$\frac{6}{3-\sqrt 2}=\frac{6}{3-\sqrt 2}\times\frac{3+\sqrt 2}{3+\sqrt 2}=\frac{6(3+\sqrt 2)}{9-2}=\frac{6(3+\sqrt 2)}{7}$
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