Antipatris - a city built by Herod the Great, and called by this name in
honour of his father, Antipater II of Judea[?]. It lay between Caesarea and
Lydda, two miles inland, on the great Roman road from Caesarea to Jerusalem. To this place Paul was brought by night (Acts 23:31) on his way to Caesarea, from which it was distant 28
miles. It is identified with the modern, Ras-el-Ain, where rise the springs of Aujeh, the largest springs in Palestine.
... are two different solutions x, both of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.)
If the discriminant is ...