learn.howToCalculate
learn.whatIsHeading
Cubic equation (ax³+bx²+cx+d=0) solver finds all roots using Cardano's formula; more complex than quadratic.
Trin-for-trin guide
- 1Input cubic coefficients a,b,c,d
- 2Apply Cardano's formula (complex procedure)
- 3Results show 1-3 real roots
Løste eksempler
Input
x³ - 6x² + 11x - 6 = 0
Resultat
Roots: 1, 2, 3
Almindelige fejl at undgå
- ✕Using quadratic formula (wrong)
- ✕Not handling complex intermediate results
Ofte stillede spørgsmål
When do complex roots occur?
Cubic always has ≥1 real root, but others may be complex conjugate pairs.
Klar til at beregne? Prøv den gratis Cubic Formula-beregner
Prøv det selv →