Factor 12x-54 using the GCF.

6 (2x-9)

Step-by-step explanation:

The two numbers in question are both even, so we can see that we can pull out 2, giving us:

2 (6x - 27)

Looking at this, we can see that we can no longer pull out 2, but we can pull out 3, giving us:

6 (2x-9)

This can be simplified no further, so this gives us the final answer, where the GCF is 6.