Première Spécialité maths- Le second degre Developpée factorisée et Canonique Les trois formes

Whole-channel inclusion: Hans Amble - Maths au Lycée is an honest teaching channel (title sample + 3 transcripts read: All three samples lack transcripts, so the whole-channel verdict from the title sample stands as the deciding factor.); this title passed a strict title check (sonnet) after a labelling pass.