Préfecture (capital): Laval[?]
Sous-préfectures: Château Gontier[?] and Mayenne[?].
... \right) x + \frac{c}{a}=0 </math> which is equivalent to <math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math> The equation is now in a form in which ...