Complete the table by identifying $u$ and $du$ for the integral.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}f(g(x))g^{\text{'}}(x)dx$

$u=g(x)$

$du=g^{\text{'}}(x)dx$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{x}^4\sqrt[\phantom{2}]{x^5+4}dx$

$u=$

$du=dx$