Decades: 1140s BC 1130s BC 1120s BC 1110s BC 1100s BC - 1090s BC - 1080s BC 1070s BC 1060s BC 1050s BC 1040s BC
Significant People
... the parabola described by the quadratic equation touches the x-axis in a single point.) If the discriminant is positive, then there are two different solutions x, both ...