Falkenberg is a municipality in southwest Sweden, in the county of Halland. The municipality covers an area of 1115.3 km². Of the total population of 38817, 19329 are male, and 19488 are female. The population density of the community is 35 inhabitants per km².
... 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 roots ...