\begin{frame}
  \frametitle{Review - Midterm Exam 3}

  \begin{exampleblock}{}
    What are the critical numbers of
    \begin{talign}
      f(x) = x^{3/5}(x-5)
    \end{talign}
    \pause
    First, we simplify
    \begin{talign}
      f(x) &= x^{8/5} - 5x^{3/5}\\
      \mpause[1]{f'(x) &= \frac{8}{5}x^{3/5} - 3x^{-\frac{2}{5}}}
      \mpause{ = x^{3/5}\left(\frac{8}{5} - \frac{3}{x}\right)}
    \end{talign}
    \pause\pause\pause
    So the critical numbers are
    \begin{itemize}
      \item $x = 0$, then $f'(x)$ undefined
      \item $x = \frac{15}{8}$, then $f'(x) = 0$
    \end{itemize} 
  \end{exampleblock}
\end{frame}