Binomial coefficients with non positive integer coefficients

Question

I am told to find the value for the following binomial coefficients:

$\binom{-1/3}{3}$ and $\binom{-5}{3}$

but i cant find the answer. Any help will be appreciated

Answer 1

$\binom{x}{3}$ is defined as $\frac{x(x-1)(x-2)}{6}$.