< User:Kingturtle
Political theory
World War II
Cold War Part One (of Three) (1945-1963)
==Cold War (part two of three) ((1964-1980)
Race outline
Psychology topics
Personalities in U.S. History
Presidents
Mythology
... of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.) If the discriminant is negative, then there are two differen ...