Question

solve y^3=-31 where y is a real number. simplify your answer as much as possible. (if there is more than one solution, separate them with commas.)

Explanation:

Step1: Take cube - root of both sides

$y=\sqrt[3]{- 31}$
Since $(-a)^3=-a^3$, we know that $\sqrt[3]{-31}=-\sqrt[3]{31}$

Answer:

$-\sqrt[3]{31}$