Question

If f(x) = 5(x + 3) 3 - 2,then what does f-1(x) equal?

Answer 1

$f(x)=5\cdot(x+3)^3-2$$\frac{f(x)+2}{5}=(x+3)^3$$\sqrt[3]{\frac{f(x)+2}{5}}=x+3$$f^{-1}(x)=\sqrt[3]{\frac{x+2}{5}}-3$