Redirected from 1285 BC
Decades: 1330s BC 1320s BC 1310s BC 1300s BC 1290s BC - 1280s BC - 1270s BC 1260s BC 1250s BC 1240s BC 1230s BC
Significant People
... 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 ...