Simplify the radical expression.

square root 45
(1 point)
Responses

5 times square root 3.
Image with alt text: 5 times square root 3.

3 times square root 5.
Image with alt text: 3 times square root 5.

3 times square root 15.
Image with alt text: 3 times square root 15.

15

1 answer

3 times square root 5.