Express 4^(4/5) in simplest radical form?

Answer 1

4^4/5 = (2²)^4/5 = 2^8/5 = 2^5/5·2^3/5 = 2·2^3/5 = 2·8^1/5

Answer 2

4^4/5 = ⁵√(4⁴) = ⁵√√256