Question 427390
{{{(root(13, 9x^2y))^3}}}
In general<br><br>
{{{a^(p/q) = root(q, a^p) = (root(q, a))^p}}}<br>br>
Your expression matches the pattern on the far right of the above. So your expression will be:<br><br>
{{{(9x^2y)^(3/13)}}}<br>br>
The rational exponent will not reduce so we are finished.