If `g(x)=x^3+x-2` and `g(f(x))=x^3+3x^2+4x` then f(1)+f(2) is equal to ________

Explanation

To solve the problem, we start with the given functions:

1. \( g(x) = x^3 + x - 2 \)
2. \( g(f(x)) = x^3 + 3x^2 + 4x \)

We need to find \( f(1) + f(2) \).

### Step 1: Set up the equation
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