Answer: 6(2z + 3)
Explanation:
So, with the distributive factor you want to find the greatest common factor. In this case, the greatest common factor is 6 because it can go into both 12 and 18. So now you need to simplify the numbers. You would put the 6 on the outside because it is the GFC.
6(
Now, you need to divide both numbers by 6 and your equation should look like this:
6(2z +3)
Hope this helps! :)