The area of a square is 64n^36 square units. What is the side length of one side of the square?

The area of a square is S^2
when the area is known, to find the length of a side, find the square root of the area.
Side = SQRT ( 64n^36)
64n^36 can be rewritten as (8n^18)^2
Side = SQRT(8n^18)^2)
Side = 8n^18 units