Question

Calcule:
∛(-1/8 ) b)-∛(-27)

Answer 1

$\sf a) \sqrt[3]{( - \frac{1}{8} )} \\ \\\sf \frac{ \sqrt[3]{ - 1} }{ \sqrt[3]{8} } \\ \\\sf \frac{ - 1}{ \sqrt[3]{8} } \\ \\\sf \red{ - \frac{1}{2} } \\ \\ \ \\\sf b) - \sqrt[3]{( - 27)} \\ \\\sf - \sqrt[3]{ - 27} \\ \\\sf - ( - 3) \\ \\\sf \red{ 3}$

Answer 2

$a)\sqrt[3]{-\dfrac{1}{8}}=\sqrt[3]{-\dfrac{1^3}{2^3}}=-\dfrac{1}{2}\\\\\\-b)\sqrt[3]{-27}=-\sqrt[3]{-3^3}=3$