Do you remember FOIL?
Prove it by multiplying these:
OK, now we'll be undoing FOIL. I'm going to merge you into this slowly. Factoring can be a bit of a shock.
Remember that, when you do FOIL, there are inner and outer terms... This will be the key to nailing these things.
Let's try to factoring this guy:
I'm going to start you out...
First, we can do the x guys -- they're easy:
And I'm going to give you the last guys: