Answer:
The roots of the polynomial equation are.
Step-by-step explanation:
The polynomial provided is:
As the polynomials highest degree is 3 there will be 3 roots of the polynomial equation.
The first root can be determined by the hit-and-trial method.
For x = 2,
For x = - 2
Thus, one of the roots of the polynomial is or one factor is .
Now divide he polynomial with this factor as follows:
The resultant polynomial is a quadratic equation.
Solve the equation as follows:
Thus, the roots of the polynomial equation are.