Enter a, b and c to get both solutions, the discriminant, the vertex and the working — including complex roots.
Quick Answer
Quadratic Equation Solver lets you: Enter a, b and c to get both solutions, the discriminant, the vertex and the working — including complex roots. To start, tap a box and use the keys. The equation is written as ax² + bx + c = 0.
Tap a box and use the keys. The equation is written as ax² + bx + c = 0.
Both roots appear straight away, with a note on whether they are real or complex.
The discriminant, the quadratic formula with your numbers, the vertex and the factored form are shown.
Change any value and everything updates immediately.