Question

under root x upon under root 5 is equal to under root 2 + 1​

Answer 1

Step-by-step explanation:

$\frac{ \sqrt{x} }{ \sqrt{5} } = \sqrt{2} + 1$

${ \frac{ \sqrt{x} }{ \sqrt{5} } }^{2} = { \sqrt{2} + 1 }^{2}$

$x = 15 + 10 \sqrt{2}$