Answer :

Sure! Let's expand the given expression step-by-step:

We start with the expression \(3(d + 4)\). This expression involves both the distributive property and multiplication.

1. Apply the Distributive Property:
The distributive property states that for any numbers \(a\), \(b\), and \(c\):
[tex]\[ a(b + c) = ab + ac \][/tex]
In this case, \(a = 3\), \(b = d\), and \(c = 4\). We will distribute the \(3\) to both \(d\) and \(4\).

2. Multiply the \(3\) by \(d\):
[tex]\[ 3 \cdot d = 3d \][/tex]

3. Multiply the \(3\) by \(4\):
[tex]\[ 3 \cdot 4 = 12 \][/tex]

4. Combine the results:
After distributing the \(3\) to both terms inside the parentheses, we add the products:
[tex]\[ 3d + 12 \][/tex]

Therefore, the expanded form of \(3(d + 4)\) is:
[tex]\[ 3d + 12 \][/tex]