I dont know why but I have a lot of trouble factoring. After 3 years of it I would expect to be a lot better at it but I still find it as hard as when I first learned it. Im just wondering if anyone here can help me understand it a little different then my teachers have. To date I think I finally understand stuff like [tex]2x^2-2x-12[/tex] [tex]x^3-5x^2-6x[/tex] [tex]5x^3-45x[/tex] The stuff I am having trouble with is things like this [tex]x^3+x^2-4x-4[/tex] [tex]x^8-1[/tex] [tex]2m(m-n) + (m+n)(m-n)[/tex] Is there any certain rules or guidelines I may be able to follow to make these kind of questions easier. Right now im not really sure how to start them.