Question

if x=
$\sqrt{2 + \sqrt{5 } } + \sqrt{2 - \sqrt{5} }$
&y=
$\sqrt{2 + \sqrt{5 } } - \sqrt{2 - \sqrt{5} }$
find x^2+y^2​

Answer 1

Step-by-step explanation:

check this image.

here is your answer