I have a function that includes the phrase $(-x)^{1/3}$. It seems like this should always evaluate to $-(x^{1/3})$. For example, $-1 \cdot -1 \cdot -1 = -1$, so it seems that $(-1)^{1/3}$ should equal $-1$.

When I plug $(-1)^{(1/3)}$ into something like Mathematica, I get: 

```
0.5 + 0.866025i

```

Cubing this answer does in fact compute to $-1$.

Is this a situation, like $\sqrt4$, where there are two valid answers , $\{-2, 2\}$?