Governors of North Greenland
Governors of South Greenland
Governor of East Greenland (annexed by Norway in 1932 and named Eric the Red's Land[?].)
Governors of Greenland
For leaders after this see: List of Prime Ministers of Greenland
... are two different solutions x, both of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.) If the discriminant is ...