u/Euphoric-Animal3195

Hi guys!!
I noticed that, for majority of my differentiation questions, the cas would give me wrong answers. and its not like a little wrong. its completely wrong. This is kind of a pretty big fucking issue as i have my sac in a few days 💔 i have no idea what the issue is. I reset it and it still goves the same wrong answer. What is up with this cas.

SOMEONE HELP

I‘ve added a photo so that you can see.

update: im fairly sure that the answer i got by doing it myself is equivalent to this, but how the hell did it even get there??? Is there any way to change this