Question

Find the inverse of g(x)=4x^3−15 I keep getting x^(1/3)((x+15)/4), what am I doing wrong?

Answer 1

im going to assume everything ....

Answer 2

y = 4x^3 -15
+15 +15
---- ----
y+15 = 4x^3
/4 /4

y+15
---- = x^3 ; cbrt the sides
4


y+15
cbrt (-----) = x
4

Answer 3

then swap y for x since an inverse does that

Answer 4

you actually got most of it good :)