Quadratics - Season 1 Episode 5 Complex Roots
After a quick review of the lessons learned in the first four shows, this program concentrates on the discriminant:the square root of b squared minus 4acIt is the discriminant that dictates where the parabola lies on the Cartesian plane–if the parabola touches the x-axis in two points, one point, or not at all.The greatest challenge occurs when the discriminant is negative–forcing the use of complex numbers. This is a combination real number and the imaginary number (labeled i).
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