To factor the expression \(4x + 6\) completely, we can look for the greatest common factor (GCF) of the coefficients:
The GCF of \(4\) and \(6\) is \(2\).
Now, we can factor out \(2\) from the expression:
\[ 4x + 6 = 2(2x + 3) \]
So, the completely factored form of \(4x + 6\) is:
\[ 2(2x + 3) \]