\begin{equation}\sqrt{6} \times \sqrt{6}\end{equation}

\begin{equation}\sqrt{4} \times \sqrt{36}\end{equation}

\begin{equation}\sqrt{40} \times \sqrt{24}\end{equation}

\begin{equation}\sqrt{72} \times \sqrt{5}\end{equation}

\begin{equation}\frac{\frac{\sqrt{7}}{8} \times \sqrt{2}}{6}\end{equation}

\begin{equation}(3-\sqrt{8}) \times (3+\sqrt{8})\end{equation}

\begin{equation}(4 \times \sqrt{3})^{2}\end{equation}

\begin{equation}\sqrt{(6x)}\sqrt{(10x+6)}\end{equation}

\begin{equation}\sqrt{(3x)}\sqrt{(300x^{3})}\end{equation}

\begin{equation}4\sqrt{(30x)}\sqrt{(12x)}\end{equation}

\begin{equation}3\sqrt{(4x)}\sqrt{(162x)}\end{equation}

\begin{equation}2\sqrt{(9x)}\sqrt{(27x)}\end{equation}