How do you find the inverse of f(x)=x32?

1 Answer
Oct 14, 2015

3x+2

Explanation:

Equate f(x) to some variable, say y. f(x)=y.

So,
x32=y
x3=y+2
x=3y+2

Now swap in x for y. And f(x) inverse is= 3x+2

(Sorry if the formatting is wrong, I'm pretty new here but as the answer reads, f inverse of x is equal to cube root of x plus 2)