$\displaystyle \frac{8^2}{3}\left( \frac{\sqrt{3}}{2}+3 \right)$\displaystyle \frac{8^2}{3}\left( \frac{\sqrt{3}}{2}+3 \right)

$8^2 \cdot \sqrt{3}$8^2 \cdot \sqrt{3}

$\displaystyle \frac{8^2\sqrt{6}}{3}$\displaystyle \frac{8^2\sqrt{6}}{3}

$\displaystyle 8^2\left( \frac{\sqrt{3}}{2}+3 \right)$\displaystyle 8^2\left( \frac{\sqrt{3}}{2}+3 \right)