Question

rationalize the denominator
underoot 3 / underoot 5 + underoot 2
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Answer 1

$\frac{2( \sqrt{3} + \sqrt{5} }{ \sqrt{3} - \sqrt{5} } \times ( \sqrt{3} + \sqrt{5} ) \\ = \frac{(2 \sqrt{3} + 2 \sqrt{5} )}{(3 - 5)} \\ = - ( \sqrt{3} + 5)$