Question

QUESTION:
How to find zeroes of cubic equation easily?
Is there any formula to solve cubic equation?​

Answer 1

Answer:

In the case of a quadratic equation ax² + bx + c = 0, the discriminant is b² − 4ac; for a cubic equation x³ + ax² + bx + c = 0, the discriminant is a²b² + 18abc − 4b³ − 4a³c − 27c²

✍︎ The cubic formula tells us the roots of a cubic polynomial, a polynomial of the form ax3 +bx2 +cx+d. Specifically, we'll look at the two cubic polynomials x3 15x4 and x3 3x+p2, and we'll use complex numbers and the cubic formula to determine what their real number roots are.

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