(continue with 1975)
Austrian Offices in Crete[?] 1903-1914. all
Austrian Offices in the Turkish Empire[?] 1867-1914, all
... to both sides, getting <math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math> The left side is now a perfect square; it is the ...