Question 43516
√[121x12y16z6]

The first thing to do is remove all of the perfect squares I'll rewrite the problem so you can see them (11*11*x*2*2*3*y*4*4*z^3*z^3)^0.5  so now we have
{{{11*2*4z^3*sqrt(3*x*y)}}}or

{{{88*z^3*sqrt(3*x*y)}}}