Obdam (population: 6,504) is a town in the north-western Netherlands, in the province of North Holland. The municipality covers an area of 20.95 km² (of which 0.31 km² water).
The municipality of Obdam also includes the following towns, villages and townships: Berkmeer[?], Hensbroek[?], Wogmeer[?].
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... this means that the parabola described by the quadratic equation touches the x-axis in a single point.)
If the discriminant is positive, then there are two different ...