Question 5406
{{{sqrt(50x^2)}}}

You can break this down by thinking of it as:
{{{sqrt(25*2*x^2)}}} 
{{{(sqrt(25))}}}*{{{(sqrt(x^2))}}}*{{{(sqrt(2))}}}
{{{sqrt(25) = 5}}} 
{{{sqrt(x^2)= x }}}
{{{sqrt(2)}}}

= {{{5*x*sqrt(2)}}}