Question 573044
5 sqrt(27) + sqrt(75) + sqrt(3)
------------
= 5 sqrt(9*3) + sqrt(25*3) + sqrt(3)
----
= 5*3sqrt(3) + 5sqrt(3) + sqrt(3)
----
= (15+5+1)sqrt(3)
----
= 21sqrt(3)
===============
cheers,
stan H.