>>11540974If it's multiple choice, maybe you can rely on intuition, numeric approximation, elimination, and whatever morsels you did manage to learn to eke out some kind of pass. But I really doubt it.
If it isn't multiple choice then realistically you have no chance. Tell them you have covid or something and will need to withdraw from the exam (hopefully will look a bit better on your record). Take it when it's next available and try to do better.
Out of interest, how did you get into this situation? Do/might you have ADHD or some other condition that makes it hard to focus? Are you interested in the subject or is it just a prereq to you?