This lecture discusses solutions of quadratic equations and shows that every quadratic has two roots. both real or both complex. There is also a case of a repeated real root. In all three cases the quadratic can be written as
a (x-r1)(x-r2), where r1 and r2 are the two roots.
Math 4 Micro: Lecture 2 Quadratic equations - Continues the discussion of the fundamental theorem of algebra.