Why were my AP Exams different from yours?

<p>My AP Chemistry and AP Calculus exam are different from yours, and those uploaded.
WHY?
WHY were my harder.</p>

<p>This is so unfair.</p>

<p>For the AP Calculus AB Exam, there are two versions of the Free Response: Form A and Form B, and the question sets are different and offered to different parts of the world. Each form has its own curve.</p>

<p>But both forms offered so far have been uploaded onto the College Board website.</p>