Add 28–√ + 28−−√ + 28–√ .(1 point)
Responses
544−−√
5 Start Root 44 End Root
416−−√ + 28−−√
4 Start Root 16 End Root plus Start Root 28 End Root
58–√
5 Start Root 8 End Root
48–√ + 28
4 Start Root 8 End Root plus 28
4 Start Root 8 End Root plus Start Root 28 End Root
To simplify the expression 28–√ + 28−−√ + 28–√, we can follow these steps:
1. Simplify the square roots individually:
- √28 = √(4 * 7) = 2√7
- √28 = √(4 * 7) = 2√7
- √28 = √(4 * 7) = 2√7
2. Combine the simplified square roots:
- 2√7 + 2√7 + 2√7 = 6√7
Therefore, the simplified expression is 6√7.