Quadratic Equation Solver
Solve ax² + bx + c = 0 with real or complex roots, discriminant and vertex.
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How it works
x = (−b ± √(b² − 4ac)) / 2a. The discriminant D = b² − 4ac: D > 0 two real roots, D = 0 one repeated root, D < 0 two complex roots. Vertex x = −b/2a.