Solve a x² + b x + c = 0
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Discriminant
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Vertex
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Roots are
Frequently Asked Questions
How is a quadratic equation solved?
Using the quadratic formula x = (−b ± √(b² − 4ac)) ÷ 2a. The discriminant b² − 4ac tells you the nature of the roots: positive = two real roots, zero = one repeated root, negative = two complex roots.
Solve any quadratic equation, with the discriminant, vertex and real or complex roots.