Radiant Silvergun is a popular game for the Sega Saturn. Released only in Japan and created by Treasure this is one of the most sought after titles for the Saturn largely because it is seen by many as the finest videogame shooter ever made.
... x) to the expression to the left of "=", that 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 = ...