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Quadratic Formula, Discriminant, and Inequalities

Topics in Quadratic Formula, Discriminant, and Inequalities

Numbered in the order to learn them.

  1. Intro to the Quadratic Formula

  2. Intro to Discriminants: When Do Quadratics Have Real Roots?

  3. Number of Real Solutions, in Terms of Quadratic Discriminant

  4. Link to Quadratics with Negative Discriminant

  5. Quadratic Inequality P≥0 or P>0 When P Has 2 or 1 Real Roots

  6. Recap: x^2≥0 for All Real x (Trivial Inequality)

  7. Quadratic Inequality P≥0 or P>0 When P Has 0 or 1 Real Roots

  8. Solving Real Quadratic Inequalities P≥Q or P>Q

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