Question

Va rog sa ma ajutati urgent!!! ​

Answer 1

$a = \sqrt{( \sqrt{5} - \sqrt{3} } ) ^{2} + \sqrt{( \sqrt{5} + \sqrt{3} } ) ^{2} - 4 + 2 \sqrt{5}$

$= \sqrt{5} - \sqrt{3} + \sqrt{5} + \sqrt{3} - 4 + 2 \sqrt{5}$

= - 4