Question 954685
{{{f(x)=(x+2)^(1/3)}}} and {{{g(x)=x^3-2}}}


Composite of them should be x.


{{{f(g(x))=((x^3-2)+2)^(1/3)}}}
{{{(x^3-2+2)^(1/3)}}}
{{{(x^3)^(1/3)}}}
{{{x^(3(1/3))}}}
{{{x^1=x}}}


You should also check g(f(x)) just to be sure.