Integrate the functions`sqrt(x^2+4x+6)`

Explanation

To integrate the function \( \sqrt{x^2 + 4x + 6} \), we will follow these steps:

### Step 1: Rewrite the expression under the square root
We start with the integral:
\[ I = \int \sqrt{x^2 + 4x + 6} \, dx \]
We can complete the square for the quadratic expression \( x^2 + 4x + 6 \).
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