Write down the squares of this π\3 √2g

The square of π^(1/3)√(2g) can be calculated as follows:

π^(1/3)√(2g) * π^(1/3)√(2g)
= π^(2/3)*(√(2g))^2
= π^(2/3)*(2g)
= 2gπ^(2/3)