Question

Given f(x)=(2x+1)^3. Find f^−1(x). (inverse)

Answer 1

Explanation:

`f(x)=y=(2x+1)^3\\Exchanging\ x\ and\ y\\\\x=(2y+1)^3\\\\\\Finding\ y\\\sqrt[3]{x} =2y+1\\\\2y=\sqrt[3]{x}-1\\\\\boxed{y=\frac{\sqrt[3]{x}-1}{2} =f^(-1)(x)}`