Question

plz solve it stp by stp​

Answer 1

$\frac{7 + 3 \sqrt{5} }{3 + \sqrt{5} } - \frac{7 - 3 \sqrt{5} }{3 - \sqrt{5} } \\ \frac{ {7}^{2} - {(3 \sqrt{5}) }^{2} }{ {3}^{2} - { (\sqrt{5} )}^{2} } \\ \frac{49 - 45}{9 - 5} \\ \frac{4}{4} \\ 1$