Question 1194326
Maybe I not follow your description well but x/y means the same as x*y^(-1).  This is well defined notation and not a mystery.



"cubic root of
1 over 8 * x over y"
That is ambiguous.



"cubic root of x^2 * y over
cubic root of 8*x*y^2"

Again this is also ambiguous.



-----------


I saw and read your extra note.  Most of the square root description is still too ambiguous.  Show your starting expression clearly in correct notation to get the help you want.


As for {{{x/y=x*y^(-1)}}}, this is already clear.  Nothing to not understand.


---


Is this what your expression is as given?
{{{root(3,((1/8)(x/y)))}}}



And if so, you wish to simplify this?