 # Cubic Equation Solver

Cubic Equation Solver Calculator is a free online tool that displays the solution for the given cubic equation. BYJU’S online cubic equation solver calculator tool makes the calculation faster, and it displays the result in a fraction of seconds.

## How to Use the Cubic Equation Solver Calculator?

The procedure to use the cubic equation solver calculator is as follows:
Step 1: Enter the equation in the respective input field
Step 2: Now click the button “Solve” to get the variable value
Step 3: Finally, the result of cubic equation will be displayed in the new window

### What is Meant by the Cubic Equation?

In Maths, a polynomial having its highest degree as three is known as a cubic polynomial. An equation involving a cubic polynomial is known as a cubic equation. All cubic equations have either one real root, or three real roots. The cubic equation is of the form, ax3+bx2+cx+d=0
Example:
Solve the equation, x3-4×2-9x+36=0
Solution:
We have x3-4×2-9x+36=0
⇒ x2 (x-4)-9(x-4) =0
⇒ (x2-9) (x-4) =0
⇒ (x-3) (x+3) (x-4) = 0
Hence, the roots of the given equation are x= 3, x= -3 and x= 4.