So GCF is greatest common factor. This means- what is the biggest number that goes into both 4a^4 and 6a^2. Well, 2 goes into both 4 and 6! And a^2 goes into both of those a values. So we take out 2a^2 and put the rest in parenthesis. By taking out that value, we will divide the expression by it. We get 2a^2(2a^2 + 3)
For 11, I’m not sure what the table is. I think it’s a 4 square box where you put 5w and 3 on one side and 2w and 7 on the adjacent side. Then you multiply each value together. Let me know if you need more help with that
