Question

Simplify.

https://clackamasweb.owschools.com/media/g_ima01_2014/2/269.gif

11mn
11m^2n^2
11m^4n^2

Answer 1

change square root to exponent \[\huge\rm \sqrt{ x} = x^\frac{ 1 }{ 2 }\]
and take square root of 11

Answer 2

another example
\[\huge\rm \sqrt[n]{x^m} = x^\frac{ m }{ n }\]