Question

http://prntscr.com/1zxe6z

Answer 1

\(\bf \color{blue}{81 \implies 3\times 3\times 3\times 3\implies 3^3\times 3\\ \quad \\
54\implies 2\times 3\times 3\times 3\implies 2\times 3^3}\\ \quad \\
\large 3\sqrt[3]{81}-2\sqrt[3]{54}\implies 3\sqrt[3]{3^3\times 3}-2\sqrt[3]{2\times 3^3}\)


can we take anything out of the radicals?