Question 1201014
<br>
{{{-2*sqrt(180u^3v^6)}}}<br>
Break the radicand into factors, of which as many as possible are perfect squares:<br>
{{{-2*sqrt((36)(5)(u^2)(u)(v^6))}}}<br>
Take the perfect square factors outside the radical, leaving the other factors in the radicand:<br>
{{{-2*(sqrt(36))(sqrt(u^2))(sqrt(v^6))(sqrt(5))(sqrt(u))}}}
{{{-2(6)(u)(v^3)(sqrt(5))(sqrt(u))}}}
{{{-12uv^3(sqrt(5u))}}}<br>