Préfecture (capital): Metz.
Sous-préfectures: Boulay Moselle[?], Château Salins[?], Forbach[?], Sarrebourg[?], Sarreguemines[?] and Thionville[?].
... is equivalent to <math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math> The equation is now in a form in which we can conveniently complete th ...