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766

Centuries: 7th century - 8th century - 9th century

Decades: 710s 720s 730s 740s 750s - 760s - 770s 780s 790s 800s 810s

Years: 761 762 763 764 765 - 766 - 767 768 769 770 771

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Quadratic formula

... we get <math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math> Generalizations The formula and its proof remain ...