If the sum of n terms of a series is`2n^(2)+5n` for all values of n, find its 7th term.

Explanation

To find the 7th term of the series where the sum of the first n terms is given by \( S_n = 2n^2 + 5n \), we can follow these steps:

### Step 1: Understand the formula for the sum of n terms
The sum of the first n terms \( S_n \) is given as:
\[ S_n = 2n^2 + 5n \]

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