Son of Acheron and Orphne. He told the other gods that Persephone had eaten a pomegranate in Hades. He was punished by being changed into an owl. (Ovid V, 534)
... have y = b/(2a), so we add the square of b/(2a) to both sides, getting
<math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math>
Th ...