Centuries: 9th century - 10th century - 11th century
Decades: 870s 880s 890s 900s 910s - 920s - 930s 940s 950s 960s 970s
Years: 922 923 924 925 926 - 927 - 928 929 930 931 932
Births
Deaths
... with a being non-zero. These solutions are also called the roots of the equation. The formula reads <math> x=\frac{-b \pm \sqr ...