Question

Given `f(x) = |2x + 1|`, `g(x) = 3x³ -1` how do you find f(g(x))?

Answer 1

`f@g(x) = abs(2(3x^3 - 1) + 1)=abs(6x^3-1)`

Explanation:

Keep in mind that `(f@g)(x)` = `f(g(x))` so you just have to replace the`x` in `f` by the expression of `g`.