Decades: 60s BC 50s BC 40s BC 30s BC 20s BC - 10s BC - 0s 10s 20s 30s 40s
Years: 18 BC 17 BC 16 BC 15 BC 14 BC 13 BC 12 BC 11 BC 10 BC 9 BC 8 BC
Births
Deaths
... solution(s) x to the quadratic equation <math>ax^2+bx+c=0</math> in terms of the coefficients a, b and c, which are assumed to be real (but see below ...