Find the deifferential coefficient of `(x^(2)+7x+2)(x+3)` with respect to 'x'.

Explanation

To find the differential coefficient of the function \( y = (x^2 + 7x + 2)(x + 3) \) with respect to \( x \), we will apply the product rule of differentiation. Here are the steps:

### Step 1: Identify the functions
Let:
- \( u = x^2 + 7x + 2 \)
- \( v = x + 3 \)

### Step 2: Apply the product rule
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