Question: how to find the inverse of a function with x as an exponent?
Answer: STEP 1: Change f ( x ) f\left( x \right) f(x) to y.
f ( x ) → y \large{f\left( x \right) \to y} f(x)→y.
STEP 2: Interchange x and y in the equation.
x → y \large{x \to y} x→y.
y → x \large{y \to x} y→x.