Kevin Michael Williams was a bond salesman for Sandler O'Neill. He was engaged to Jillian Volk, to whom he proposed on the lap Macy's[?] Santa in December 2000.
... 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 ...