Question 573713
factor terms and move "pairs" of terms from under the radical:
{{{sqrt(50x^6y^3)}}}
{{{sqrt(5*5*2x^6y^3)}}}
{{{5*sqrt(2x^6y^3)}}}
{{{5*sqrt(2x^3x^3y^3)}}}
{{{5x^3*sqrt(2y^3)}}}
{{{5x^3*sqrt(2yyy)}}}
{{{5x^3y*sqrt(2y)}}}  (this is what they're looking for)