+26393 Simplify sqrt(162x^3y^2)
Assume x and y are nonnegative.
\(\begin{array}{|rcll|} \hline && \sqrt{162x^3y^2} \\ &=& \sqrt{81\cdot2x^2xy^2} \\ &=& \sqrt{81x^2y^2 2x} \\ &=& \sqrt{81}\sqrt{x^2}\sqrt{y^2}\sqrt{2x} \\ &=& \sqrt{9^2}\sqrt{x^2}\sqrt{y^2}\sqrt{2x} \\ &=& 9xy\sqrt{2x} \\ \hline \end{array}\)
