Question

plss solve a genius can solve it

Answer 1

$\rightarrow(5 + \sqrt{7})(2+\sqrt{5})$
$\Rightarrow 5(2 + \sqrt{5}) + \sqrt{7}(2+\sqrt{5})$
$\Rightarrow 10 + 5\sqrt{5} + 2\sqrt{7} + \sqrt{7\times5}$
$\Rightarrow 10 + 5\sqrt{5}+ 2\sqrt{7}+ \sqrt{35} \,\,\,\,\,\, ... \,\,\text{Answer}$