$mathjax$4\sqrt[3]{81}-2\sqrt[3]{72}-\sqrt[3]{24}$mathjax$
and display the result as $mathjax$10\sqrt[3]{3}-4\sqrt[3]{9}$mathjax$
, instead of $mathjax$10 \cdot 3^{1/3} - 4\cdot 3^{2/3}$mathjax$
.Unfortunately, such a display doesn't exist for Nspire.