the first one is A. because it can all be divided by 4 and when you divided it also the exponents are subtracted.
second one is B. this one can be simplifide by doing the F.O.I.L. trick.
and last one is B also. because it's the only one that has a logic answer. if you were to F.O.I.L. it it would give you the answer but if you were to F.O.I.L. the others then you will find out the others don't add up.
hope this can work.
