Cubic Equation Calculator Online

Cubic Equation Calculator Description


The cubic equation is represented by the cubic equation formula. The term "cubic polynomial" or "cubic equation" refers to a polynomial with degree three. The number of real roots in a cubic equation must be at least one and cannot exceed three. A cubic equation's roots may be imaginary as well, but at least one must be real.

What Is Cubic Equation Formula?

It is possible to determine a cubic equation's curve using the cubic equation formula. Finding the roots of a cubic equation can be done with great assistance by employing a cubic equation representation. A polynomial with degree n will contain n zeroes or roots. The cubic equation has the following structure:

Example of cubic equation

Cubic Equation formula: ax3 + bx2 + cx + d = 0

Example of Calculations:

a : 2

b : 9

c : 3

d : -4

2x3 + 9x2 + 3x + (-4)


x1 = -4 , and x2 = -1, and x3 = 0.5

How to use Cubic Equation Calculator?

  • You need to enter the coefficient values a, b, c, and d.
  • Then press the button "Submit".
  • The result of the cubic equation will automatically appear below.

FAQs on Cubic Equation :

Question No 1: What Is Cubic Equation Formula?

The cubic equation curve can also be derived using the cubic equation formula. Finding the roots of a cubic equation is made much easier by adopting a cubic equation representation. An n-degree polynomial will have n zeros or roots. The cubic equation is expressed as

Question No 2: How to Solve Cubic Polynomials Using Cubic Polynomial Formula?

The approach that is most frequently used to solve a cubic equation is

  • The first step is to convert a cubic polynomial into a quadratic equation.
  • The quadratic formula is used in step two to solve the equation.
  • Question No 3: What Is the Equation for Cubic Polynomials Formula?

    An algebraic equation of degree three is called a cubic equation and has the formula ax3 + bx2 + cx + d = 0, where a, b, and c are the given coefficients and d is the constant.

    Cube Equation Calculator Image:

    Cube equation example


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