The Lyndon B. Johnson Space Center ("JSC") is a Mission Control facility for NASA located in Houston, Texas. It was opened as the "Manned Spacecraft Center" in 1963 and renamed the "Lyndon B. Johnson Space Center" in 1973, honoring Lyndon B. Johnson.
... will make it a perfect square trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must have y = b/(2a), so we add the square of b/(2a) to both ...