Redirected from 697 BC
Decades: 740s BC 730s BC 720s BC 710s BC 700s BC - 690s BC - 680s BC 670s BC 660s BC 650s BC 640s BC
Significant People
... completing the square[?]. <math>ax^2+bx+c=0</math> Dividing our quadratic equation by a, we have <math> x^2 + \left( \frac{b}{a} \right) x + ...