To factor the polynomial \(12x + 16\) using the greatest common factor (GCF), we first find the GCF of the coefficients 12 and 16.
The factors of 12 are: \(1, 2, 3, 4, 6, 12\)
The factors of 16 are: \(1, 2, 4, 8, 16\)
The greatest common factor of 12 and 16 is \(4\).
Now we can factor out the GCF:
\[ 12x + 16 = 4(3x + 4) \]
Thus, the factored form is:
\[ 12x + 16 = 4(3x + 4) \]
So, the complete answer is:
\[ 12x + 16 = 4(3x + 4) \]