Question

In the following exercise, simplify:$7\sqrt{y}+2\sqrt{y}$

Short answer

The solution is$9\sqrt{y}.$

Step-by-step solution

Step 1. Given information

Roots:$7\sqrt{y}+2\sqrt{y}$

Step 2. Calculation

We have,

$$\begin{gathered} 7\sqrt{y}+2\sqrt{y} \\ =9\sqrt{y} \end{gathered}$$

Since the radicals are like, we add the

coefficients.