## College Algebra (11th Edition)

$(-\infty, \infty)$
Since the index is odd in the given radical function, $f(x)=\sqrt[3]{x^3+7x-4} ,$ then there are no restrictions in the value of the radicand. Hence, the domain is \begin{array}{l}\require{cancel} (-\infty, \infty) .\end{array}