C.Perform the indicated operation and express your answer in simplest form.
1. 11√5 + 6√5
2. 10√× + 5√× + 2√×
3. 8√45 + 2√5
4.7√2 + 6√3 - 2√2
5.√5 + 6³√5 + 8³√5 - 5√5​