Piggly-wiggly[?] - Claims to be the first supermarket. Motto: "Piggly-Wiggly All Over the World". One rival entrepreneur opened a store: "Hoggly-Woggly Only One in the World".
... fraction; the common denominator is 4a2. We get
<math>\left(x+\frac{b}{2a}\right)^2=\frac{-4ac+b^2}{4a^2}=\frac{b^2-4ac}{4a^2}.</math>
Taking square ...