Answer :
[tex] \sqrt{8 \: + \: 2 \sqrt{15} } [/tex]
- Factor the indicated expression:
[tex] \sqrt{( \sqrt{3 } \: + \: \sqrt{5} ) ^{2} } [/tex]
- Simplified the index, the root and also the exponent using the number 2.
[tex] \boxed{ \bold{\sqrt{3} \: + \: \sqrt{5} }}[/tex]