Stauracius was a Byzantine Emperor and son of Nicephorus I. Paralyzed by a sword wound to his neck while fighting against the Bulgars[?] at the Vurbitsa[?] pass, he reigned for one month, before retiring to a monastery and dying five months later.
... 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 ...