Born c 1085.
Studied with Anselm of Laon. Master at Rheims 1118-1136. Archdeacon of Rheims 1131-1136. Archbishop of Bourges 1136-1141.
Died 1141
... 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 the square[?]. T ...