Question 350728
f(x)=27 x^3



Let f(x) = y



y = 27x^3



Switch x and y.



x = 27y^3



Take cube root of both sides.



cuberoot[x] = cuberoot[27y^3]



cuberoot[x] = 3y



Divide both sides by 3.



(cuberoot[x])/3 = y



Done!