The current Secretary-General is Hu Jintao.
List of General Secretaries
See also: Political position ranking of PRC
... so we add the square of b/(2a) 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 ...