Decades: 730s 740s 750s 760s 770s - 780s - 790s 800s 810s 820s 830s
Years: 783 784 785 786 787 - 788 - 789 790 791 792 793
Births
Deaths
... left side 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 ...