Answer:
Step-by-step explanation:
a(4+5a+2a+a) or
a(5a+2a+a+4)
You could take out one A from each number since they all have an A in them. You could reorganize it and put it in numerical order. Hope this helped :)
y = x4! :D
0x4=0
1x4=4
2x4=8
3x4=12