Question

Sa se calculeze:
$\sqrt[3]{ 2^{21} } \\ \sqrt[3]{-16}$

Answer 1

$\sqrt[3]{ 2^{21} }= 2^{ \frac{21}{3} }= 2^{7}=128 \\ \sqrt[3]{-16}= \sqrt[3]{-2^4} =-2 \sqrt[3]{2}$