31.6.1 A Negative Discriminant Is No Longer a Dead End
31.6 Complex Numbers and Equations: Letting Every Root Appear
Point 1 of 5
31.6.1 A Negative Discriminant Is No Longer a Dead End
Core idea
Picture this: when Δ<0 a negative slips under the square root, which we once called "no solution," but now one stroke of i drops the roots right onto the complex plane
Module goal. We use complex numbers to complete the roots of real-coefficient equations, reclaiming what a negative discriminant used to cost us, and paving the way for counting and polynomials ahead
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