Answer:
The side length is equal to 3sqrt(7) n^18
Explanation:
Area of a square is given by
A = s^2 where s is the side length of a square
63 n^36 = s^2
Take the square root of each side
sqrt(63 n^36) =sqrt( s^2)
We know that sqrt(ab) =sqrt(a) sqrt(b)
sqrt(63) sqrt(n^36) = s
sqrt(9)sqrt(7) sqrt(n^36) = s
3 sqrt(7) n^18 =s
The side length is equal to 3sqrt(7) n^18