Let's now consider our expression.
12 + 8 sqrt(16)
We first calculate the square root. We know that 4^2=16, which means that sqrt(16)=4.
\begin{gathered}
12+8\sqrt{\textcolor{olive}{16}} \quad \stackrel{\text{calculate root}}{\longrightarrow} \quad 12+8(\textcolor{deepskyblue}4)
\end{gathered}
Now we can finish evaluating our expression. According to the order of operations, we will multiply and then add.
