Decades: 930s BC 920s BC 910s BC 900s BC 890s BC - 880s BC - 870s BC 860s BC 850s BC 840s BC 830s BC
Significant People
... 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 formula ...