\[\sqrt[3]{2 - \sqrt{3}} \cdot \sqrt[3]{2 + \sqrt{3}} =\]
\[= \sqrt[3]{\left( 2 - \sqrt{3} \right)\left( 2 + \sqrt{3} \right)} =\]
\[= \sqrt[3]{4 - 3} = \sqrt[3]{1} = 1.\]