Question

Raiz quinta de 3 vezes raiz quinta de 81 = 9 ?????

Answer 1

$\bf{\sqrt[5]{3}\times\sqrt[5]{81}}\\\bf{\sqrt[5]{3\times81}}\\\bf{\sqrt[5]{3\times{3}^{4}}}$

$\bf{\sqrt[5]{3}\times\sqrt[5]{81}}=\bf{\sqrt[\cancel5]{3}^{\cancel5}}\\=\bf{3}$

$\texttt{portanto\,a\,resposta\,é\,não}$