If the first three terms of an A.P. are the roots of the equation ` 4x^(3) - 24x^(2) + 23 + 18 = 0` them
compute the sum of the first n terms .

Explanation

To solve the problem, we need to find the sum of the first n terms of an arithmetic progression (A.P.) whose first three terms are the roots of the polynomial equation \(4x^3 - 24x^2 + 23x + 18 = 0\).

### Step-by-Step Solution:

1. **Identify the Roots of the Polynomial:**
Given the polynomial equation:
\[
4x^3 - 24x^2 + 23x + 18 = 0
...