Question

Calcule
$- 5+ \sqrt[3]{ - 8} =$
${3}^{2} - \sqrt[7]{1 = }$

Answer 1

$a) \\ -5+ \sqrt[3]{-8} = \\ -5+ \sqrt[3]{-2^3} = \\ -5+(-2)= \\ -5-2=-7 \\ \\ b) \\ 3^2- \sqrt[7]{1}= \\ 9-1=8$