In Norse mythology, Jotuns were the race of giants, separated into categories such as frost and storm giants. The first race drowned in Ymir's blood, and were repopulated by Bergelmir.
... 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 ...