The Norfolk Naval Shipyard, often called the Norfolk Navy Yard, is a U.S. Navy facility in Portsmouth, Virginia, for building, remodeling, and repairing the Navy's ships.
... is equivalent to
<math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math>
The equation is now in a form in which we can conveniently complete the square[?]. ...