Integer problem Solution SAT Math NLC Free videos

[carlosyt2]

i got B) three only. First i solved for X and i got  X^2 + 1= YX. so i divided by X^2 AND i got y/x=1. SO x=y. I dont know how i am wrong because the SAT doesnt just give you an obvious question. You have to dig thorough it until you get the answer because if you try to solve the equation without solving the problem, the SAT has an answer for that method too. So someone please explain to me what i didn't do right.

Thank you.

[carlosyt2]

i correct my self...There is not answer. except (II) y is an integer, but it is not in the choices .

[mathproblems]

It is New SAT problem diff hard diff 5 old standard

[TruthfuLie]

Is this a level 5 difficulty problem? I found this one to be very simple. Great explanation though. Thanks.