Quadratische Gleichungen lösen

Last updated: 2026-08-24

Quadratische Gleichungen lösen — Berechnen Sie gleichung quadratische grado online. Geben Sie a, b, c ein und erhalten Sie sofort das Ergebnis.
Inputs
Result
Enter values and press Calculate

How to use it

  1. [object Object]
  2. [object Object]
  3. [object Object]
  4. [object Object]

Common mistakes

  • ⚠️ Not checking if zu=0 (would make it linear, not quadratic)
  • ⚠️ Forgetting the ± gives two solutions, not just one
  • ⚠️ Misapplying signs when b is negative in the formula

Worked example

Solve the quadratic equation 2x² + 7x + 3 = 0 using the quadratic formula

The solutions x1 ({x1}) and x2 ({x2}) are the roots where the parabola crosses the x-axis; discriminante ({discriminante}) determines solution type (positive=2 real, zero=1 real, negative=complex)

Input guide

FieldTypical range
aWert eingeben (a)
bWert eingeben (b)
cWert eingeben (c)