someone solve these, please Options

[icecreamisyummy]

okay so i'm trying to get ready for a math placement test, and well last time i took algebra was...my junior year in high school. so im a little rusty but can someone solve these for me

1. (3x-2y)^2=
A. 9x^2-4y^2
B. 9x^2+4y^2
C. 9x^2-4y^2-6xy
D. 9x^2-4y^2-12xy

2. x^2-x-6/x^2-4=
A. x-3/2
B. x-3/x-2
c. x-3/x+2
D. 3/2

okay so I have the answers to them. This is suppose to be elementary algebra, and I feel dumb that I can't freaken figure out how they got the answers. Yea, those are the only ones I had trouble with. The one I'm having the most trouble with is 2. Idk, I really do feel dumb, so go ahead, say I'm dumb lol.

anyway, I'll tell you guys if youre right or wrong.
and I would like an explanatin on how to do these, specially number 2

I'm sure after I see the explanation, a light bulb with go off lol

oh and srry for posting this on here, I figured I would get more responses and get em a lot faster.

EDIT//

okay so i figured out the first one... and almost figured out the second one so can someone help!! i wanna make sure i figured it out correctly