Which expression describes the area of a square that has side lengths 7n3?

The answer to this problem is computed by:

Area as we know is the amount that states the degree of a two-dimensional figure or planar lamina in a plane. Plugging in our given values in s, will give us:

A = s^2 

A = (7n^3)^2 

A = (7^2)*(n^3)^2 

A = (7^2)*n^(3*2) 

A = 49n^6