Hausaufgabe Potenzen, Brüche, rationale Exponenten

Question

İch weiß nicht wie ich das berechnen soll

(4a)^(1/3) * (16a²)^(1/3)

Answer 1

16a^2= (4a)^2

(4a)^{1/3}*(4a)^{2/3} = (4a)^1 = 4a

Answer 2

(4a)^(1/3) * (16a²)^(1/3) 

=  ( 4a*16a² )^1/3 

= 64^1/3  * ( a³ ) ^1/3 

=4  *  a