Decades: 990s BC 980s BC 970s BC 960s BC 950s BC - 940s BC - 930s BC 920s BC 910s BC 900s BC 890s BC
Significant People
... 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 common denominator is 4a2. W ...