Question

If x=√(31+8√15);find the value of x+1/x.

Answer 1

SOLUTION:-

$x + \frac{1}{x } \\ \sqrt{31 + 8 \sqrt{15} } \times \frac{\sqrt{31 + 8 \sqrt{15} } + 1}{\sqrt{31 + 8 \sqrt{15} }} \\ \frac{31 + 8 \sqrt{15} + 1}{ \sqrt{31 + 8 \sqrt{15} } }$

Answer 2

I hope that’s good enough