Question 810070
{{{(sqrt(140x^5)/sqrt(5x))}}}
to rationalize take the number on the bottom...
it is a squareroot.  we do not like squareroots.
multiply the top and the bottom by the squareroot of 5x.
The squareroot of 5x times the squareroot of 5x is just 5x.
{{{(sqrt(700x^6)/5x)}}}
{{{(sqrt(7*10*10*x*x*x*x*x*x)/5x)}}}
{{{(10x^3*sqrt(7)/5x)}}}
simplify
{{{2x^2*sqrt(7)}}}