Centuries: 9th century - 10th century - 11th century

Decades: 850s - 860s - 870s - 880s - 890s - 900s - 910s - 920s - 930s - 940s - 950s

Years: 900 901 902 903 904 905 906 907 908 909 910

... left side is now a perfect square; it is the square of (x + b/(2a)). The right side can be written as a single fraction; the c ...