▣ CALCULATORS Updated July 25, 2026
Quadratic Equation Solver
Roots, discriminant, and vertex of ax² + bx + c.
a
b
c
Result
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How it works
The solver applies the quadratic formula and reports the discriminant b² − 4ac, which tells you whether the roots are real and distinct, repeated, or complex.
Frequently asked questions
What if the discriminant is negative?
The roots are complex, and the tool shows them in a ± bi form.
What is the vertex used for?
It is the turning point of the parabola, useful for maximum and minimum problems.
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