Question

Raiz cúbica de 54 + raiz cúbica de 128 - raiz cúbica de 16 ??

Answer 1

Resposta:

$\sqrt[3]{54} +\sqrt[3]{128} -\sqrt[3]{16} =\\ \\ fatorando\\ \\ \sqrt[3]{2.3^3} +\sqrt[3]{2^3.2^3.2} -\sqrt[3]{2^3.2} =\\ \\ 3\sqrt[3]{2} +2.2\sqrt[3]{2} -2\sqrt[3]{2} =\\ \\ 3\sqrt[3]{2} +4\sqrt[3]{2} -2\sqrt[3]{2} =\\ \\ 7\sqrt[3]{2} -2\sqrt[3]{2} =5\sqrt[5]{2}$