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WWW.MATHEMATICATOR.COM The solution to a quadratic equation is not always an interval that can be found from the roots of the quadratic equation. What does it look like when the discriminant is less than or equal to zero? We will talk about this in today's video. We will show you what it looks like when a quadratic equation has no solutions, when all real numbers are the solutions, and when only one number is the solution. Related videos: Quadratic inequality - How to do it • Quadratic inequality - How to do it Quadratic inequality - example 1 • Quadratic inequality - example 1 Quadratic inequalities - special cases • Quadratic inequalities - special cases... Quadratic function - theory • Quadratic function - theory Quadratic function - graph - example 1 • Quadratic function - graph - example 1 Quadratic equation - how to do it - decomposition and discriminant • Quadratic equation - how to do it - discriminant... Quadratic equation - relationship of solution with decomposition - diagram • Quadratic equation - relationship of solution with ...