About the Quadratic Equation Solver
The Quadratic Solver calculates the discriminant b^2 - 4ac and uses it to distinguish two real roots, one repeated root or a complex conjugate pair. A zero leading coefficient is rejected as non-quadratic.
How to use the Quadratic Equation Solver
- Enter coefficients a, b and c with their signs.
- Solve and inspect the discriminant.
- Substitute roots back into the original equation when accuracy matters.
Practical tips
- Write a missing term with coefficient zero.
- Floating-point answers are formatted approximations for irrational roots.