Question

Select the correct answer from each drop-down menu Simplify

Answer 1

Answer:

$3\sqrt7$

Step-by-step explanation:

This is because you can split 63 into two numbers, $\sqrt{9}$ and $\sqrt{7}$. When you simplify $\sqrt{9}$ turns into 3 but $\sqrt{7}$ will not simplify further so it will be $3\sqrt{7}$.