First two are correct. I'm not sure what you wrote in the last one, but here it is anyways:
P.S. You brain works just as good as before, if not better.
I'm working on my second homework, as I've mentionned before this is a math class I'm taking to get myself up to college math. I'm starting my master's in Human Ress, but I haven't done math since high school, about 20 years ago. My brain just doesn't work as good as it used too?
If someone would just check if those 3 answers are correct, that would be of great help.
=12x^2 -6xy 9y^2
------ + ----- + ------
-3xy -3xy -3xy
Those are the first three, I'm trying my best not to check everything with you guys because the homework is extensive and I've already had to ask for a prolongation, which cost me 60$ more (on top of the 350$+ they charged for the class), so believe me when I say that this is important for me and you guys are not wasting your time helping me out.
Thank you so much