Resposta :
[tex]\begin{array}{c|c}\sf729&\sf3\\\sf243&\sf3\\\sf81&\sf3\\\sf27&\sf3\\\sf9&\sf3\\\sf3&\sf3\\\sf1\end{array}[/tex]
[tex]\sf\sqrt[\sf6]{\sf729}=\sqrt[\sf6]{\sf3^6}[/tex]
[tex]\boxed{\boxed{\sf\sqrt[\sf6]{\sf729}=3}}[/tex]
[tex]\begin{array}{c|c}\sf729&\sf3\\\sf243&\sf3\\\sf81&\sf3\\\sf27&\sf3\\\sf9&\sf3\\\sf3&\sf3\\\sf1\end{array}[/tex]
[tex]\sf\sqrt[\sf6]{\sf729}=\sqrt[\sf6]{\sf3^6}[/tex]
[tex]\boxed{\boxed{\sf\sqrt[\sf6]{\sf729}=3}}[/tex]