How to Calculate Cubic Formula
What is Cubic Formula?
Cubic equation (ax³+bx²+cx+d=0) solver finds all roots using Cardano's formula; more complex than quadratic.
Step-by-Step Guide
- 1Input cubic coefficients a,b,c,d
- 2Apply Cardano's formula (complex procedure)
- 3Results show 1-3 real roots
Worked Examples
Input
x³ - 6x² + 11x - 6 = 0
Result
Roots: 1, 2, 3
Common Mistakes to Avoid
- ✕Using quadratic formula (wrong)
- ✕Not handling complex intermediate results
Frequently Asked Questions
When do complex roots occur?
Cubic always has ≥1 real root, but others may be complex conjugate pairs.
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