Question

Simplifique o radical:

raiz cubica de 81 * a ^7

Answer 1

$\sqrt[3]{81. a^{7} } = = \sqrt[3]{ 3^{4} . a^{7} } = \sqrt[3]{ 3^{3}.3. a^{6} .a } =3 a^{2}. \sqrt[3]{3.a}$