Question

what is equivalent to this product below?$\sqrt{9} \times \sqrt{5} \times \sqrt{2}$

Answer 1

We need to simplify the product:

$\sqrt{9}\times\sqrt{5}\operatorname{\times}\sqrt{2}$

Notice that:

$\begin{gathered} \sqrt{9}=3 \\ \\ \text{since }3²=9 \end{gathered}$

Also, we have:

$\sqrt{5}\operatorname{\times}\sqrt{2}=\sqrt{5\times2}=\sqrt{10}$

Therefore, we have:

$\sqrt{9}\times\sqrt{5}\times\sqrt{2}=3\sqrt{10}$

Answer: A. 3√10