<p>On the Dec 4th SAT was the experimental math section the one that had #25) an equation with x raised to another equation of x: (x-4)^x2+4x+7=45 or something like that im not sure the exact numbers i just wanted to know if this was the part of one exam that was experimental. I already checked Collegeboard website but i cant remeber what section it was just want some feedback.</p>