Quadratic Equation Solver

Enter the coefficients of a quadratic to get its roots and discriminant.

Quadratic Equation Solver — enter your values

Roots

x₁ = 2 · x₂ = 1

Discriminant: 1
Vertex x: 1.5

Calculation

x = (−b ± √1) ÷ (2 × 1)

Last updated: January 1, 2026