One of Dominic's particular concerns was combatting the Albigensian movement in the south of France and north of Spain.
Pope Gregory IX canonized Dominic July 13, 1234.
... 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 we ca ...