Same here. Bézout also was another mysterious killer.

Concepts coming from french mathematicians were made more obscure just to raise the bar. The irony is, in french Universities.

I recall a student who had enough failing the computer based assessments. He kindly asked the lead lecturer to show us all that he, at least, could land a perfect score. He made the mistake to try, got 8 points out of 20.

He admitted it wasn't easy when not prepared, and moved on with the next mined field.