Question

pls solve this problem​

Answer 1

${(a+b)}^{3}$

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

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

${ (\frac{4+5-4 \sqrt{5}+4+5+4 \sqrt{5} }{-1}) }^{3}$

${( \frac{18}{-1} )}^{3}$

$-5832$