The nth power of x = 5, the nth power of y = 3, find the 3N power of X bracket of Y part

The nth power of x = 5, the nth power of y = 3, find the 3N power of X bracket of Y part

x^n=5,y^n=3
(x/y)^3n=[(x/y)^n]³
=[x^n/y^n]³
=(5/3)³
=125/27