Simplify the radical expression.
Square root 7 plus 3 times square root 7
(1 point)
Responses
2 times square root 7
Image with alt text: 2 times square root 7
4 times square root 14
Image with alt text: 4 times square root 14
4 times square root 7
Image with alt text: 4 times square root 7
2 times square root 14
1 answer
4 times square root 7
1 answer