حاصل عبارت روبرو از بالا به پایین به ترتیب برابر با:
$\begin{gathered}
{\left( { - 4} \right)^2} \hfill \\
- {4^2} \hfill \\
\end{gathered} $
1 )
$\begin{gathered}
- 16 \hfill \\
- 16 \hfill \\
\end{gathered} $
$\begin{gathered}
16 \hfill \\
- 16 \hfill \\
\end{gathered} $
3 )
$\begin{gathered}
- 16 \hfill \\
16 \hfill \\
\end{gathered}$
4 )
$\begin{gathered}
16 \hfill \\
16 \hfill \\
\end{gathered} $