Balen is a municipality located in the Belgian province of Antwerp. The municipality comprises the towns of Balen proper and Olmen[?]. On January 1st, 2000 Balen had a total population of 19,290 (9,760 males and 9,530 females). The total area is 73.12 km² which gives a population density of 263.81 inhabitants per km².

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... both of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.)
If the discriminant is negative, then there are two different ...