Question

Calcule: A raiz quinta de 64 menos a raiz quinta de 486 menos a raiz quinta de 2 = ???

Answer 1

$\sqrt[5]{64} - \sqrt[5]{486} - \sqrt[5]{2} = \\ \\ \sqrt[5]{2.2^5} - \sqrt[5]{2.3^5} - \sqrt[5]{2} = \\ \\ 2 \sqrt[5]{2} -3 \sqrt[5]{2} - \sqrt[5]{2} = \\ \\ 2 \sqrt[5]{2} -4 \sqrt[5]{2} = \\ \\ -2 \sqrt[5]{2}$