Question

I need help with this practice Explain thoroughly and step by step on how to solve In the easiest way

Answer 1

Explanation

$\begin{gathered} 3\sqrt{16} \\ \sqrt{9}\sqrt{16} \\ \sqrt{16\cdot9} \\ \sqrt{144} \\ 12 \end{gathered}$

Or

$\begin{gathered} 3\sqrt{16} \\ 3\cdot4 \\ 12 \end{gathered}$

Answer

$3\sqrt{16}=12$