[tex]\sqrt[3]{8m}^3[/tex]
[tex](8m^{\frac{1}{3}})^3[/tex]
- Convert the radical into a fractional exponent using [tex]\sqrt[n]{x^m} = x^{\frac{m}{n}}[/tex]
[tex]8m^{(3 \cdot \frac{1}{3})}[/tex]
- Use the property that [tex](x^a)^b = x^{(a \cdot b)}[/tex]
[tex]8m[/tex]
The simplification would be 8m.