Hey guys i have this problem set to do for wednesday and i cant figure out how to do number 9 on my problem set, i cant remember for the life of me to figure it out, i have looked online but i cant find a clear step my step way of figuring them out, because i am pretty sure they can get long. ill provide the problem set as an attachment. I know how to get the chromatic number though just not the polynomial. It is number 9 on the problem set. Also Number 10 i am having trouble as well....thanks guys!