Redirected from Biker gang
Notable outlaw motorcycle gangs[?] have included:
There have also been scooter gangs[?], notably the Mods in the UK in the 1960s.
... 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 ...