Answer :
2m^2 is the answer
plug it in the question and you’ll get smth like this
(2m^2)^3 = 2^3m= 8m
(m^2)^3= m^6
(x^y)^z= x^y*z
plug it in the question and you’ll get smth like this
(2m^2)^3 = 2^3m= 8m
(m^2)^3= m^6
(x^y)^z= x^y*z