Question 35373
sqrt(294 x^3y^5)
Break the radicand up into two parts.
Let the 1st part be 49x^2y^4
because that is a perfect square.
Then the other part is 2xy because that is
the other factor of 294x^3y^5.
You now have [sqrt(49x^2y^4)][sqrt 6xy]
=7xy^2{sqrt6xy}
Cheers,
Stan H.