Answer:
Result: 8 + 3√3
The result is irrational because it cannot be written as a ratio of two integers and its decimal expansion will not terminate or repeat.
Explanation:
 can easily be simplified into
 can easily be simplified into 
 then
 then 
 . Thus, the new equation is
. Thus, the new equation is 
 , which cannot be simplified. As it still has a radical sign, it is a radical.
, which cannot be simplified. As it still has a radical sign, it is a radical.
Hope it helps <3