Right, my first post, I'll say, "hi" to everybody for a start.

Hello.

Now for the problem, I would like somebody to come up to me with an answer fast since I only have 4 hours left. = (.

!!!!The numbers in the first statement in the bracket are, powers!!!!

1(2') - 1(2') = 1-1

(1+1)(1-1) = 1-1

1+1 = 1

2 = 1

Now according to our math teacher, the first statement is correct while the other 3 are wrong.

Now help me??!! =(