Given x = 3, y = 1 / 3, find the value of x ^ 2n * (XY ^ n + 1) ^ 2

Given x = 3, y = 1 / 3, find the value of x ^ 2n * (XY ^ n + 1) ^ 2

Original formula = 3 ^ 2n × (1 + 1) ^ 2
=3^2n×4
=12^2n
=144^n