# How do you factor the expression 4x+12?

Mar 20, 2018

$4 \left(x + 3\right)$

#### Explanation:

We have:

$4 x + 12$

$= 4 \cdot x + 4 \cdot 3$

Taking out the common factor, that is $4$. Then, put the remaining "residue" into the parenthesis, along with the same operation sign.

$= 4 \left(x + 3\right)$