Aars is a municipality in northern Denmark, in the county of North Jutland on the peninsula of Jutland. The municipality covers an area of 223 km², and has a total population of 13,172.
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... fraction; the common denominator is 4a2. We get
<math>\left(x+\frac{b}{2a}\right)^2=\frac{-4ac+b^2}{4a^2}=\frac{b^2-4ac}{4a^2}.</math>
Taking square ...