# It's Back

**Number Theory**Level pending

*This problem is the new version of my previously posted question, which received many reports because of lack of details.*

If **a**, **b**, **c**, and **d** are positive integers such that

\(a^{3} = b^{2}\)

\(c^{3} = d^{2}\)

\(c - a = 5\)

Find the value of \(c + a\).

*Hint:It's not necessary to solve for b and d*.