๐ Quadratic Equation Solver
xยฒ +x += 0
xโ =2
xโ =1
Discriminant (bยฒ โ 4ac)1
Enter the coefficients of a quadratic equation in the form axยฒ + bx + c = 0, and this tool automatically solves for its roots using the quadratic formula. If the discriminant is negative, complex roots are shown too. Useful for checking math homework.
How to use
- Enter the coefficients a, b, and c (a must not be 0).
- Depending on the sign of the discriminant, real roots, a repeated root, or complex roots are shown automatically.
FAQ
What is the discriminant?
It's the value bยฒ โ 4ac. A positive value means two distinct real roots, zero means a repeated root, and a negative value means complex roots.
What happens if I enter 0 for a?
If a is 0 the equation is no longer quadratic, so no result is shown. Solve it as a linear equation instead.
How do I read a complex root result?
It's shown in the form "real part ยฑ imaginary part ร i", where i is the imaginary unit (โ-1).