Find the domain of the function `f(x) = (x-1)/(x^(2) + 5x +6)`.

Explanation

To find the domain of the function \( f(x) = \frac{x-1}{x^2 + 5x + 6} \), we need to determine the values of \( x \) for which the function is defined. The function will be undefined when the denominator is equal to zero.

### Step-by-Step Solution:

1. **Identify the Denominator**:
The denominator of the function is \( x^2 + 5x + 6 \).

2. **Set the Denominator to Zero**:
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