@Intercollege Even if you do not get your exams back, you need to sit down with a math-experienced person (either a family member or a tutor) and review the contents of your exams with your teacher. The clues are all on the exams. The disconnects should be obvious since you have, presumably, more than one exam with low scores. At this point, you should be focused not on mitigating this bad mark, but figuring out what went wrong and fixing it ASAP. You need to retake this course, but you need to figure out what went wrong first.