The Enterobacteriaceae are a family of Bacteria, included in the gamma subdivision of the Proteobacteria group. Some of the genera included in this family are:
... b/(2a) from both sides, we get <math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math> Generalizations The ...