Question

3(5 + n)
(3·5) + (3·n)
(3·5) + n
(3 + 5)(n)
(3·5) + (5·n)
clear my selection

Explanation:

Step1: Apply distributive property

The distributive property states $a(b+c) = (a \cdot b) + (a \cdot c)$. For $3(5+n)$, set $a=3$, $b=5$, $c=n$.
$3(5+n) = (3 \cdot 5) + (3 \cdot n)$

Step2: Match with options

Compare the expanded form to the given choices.

Answer:

A. $(3 \cdot 5) + (3 \cdot n)$