Well, the way I showed to you works, but that polyomial you provided has no rational roots, so if you want the results
Order of Polynomial, n = 3
The Coefficients are:
a[0] = -1
a[1] = 8
a[2] = -1
a[3] = 6
The Normalized Coefficients are:
a[0] = 1.00000000000000
a[1] = -8
a[2] = 1
a[3] = -6
The Roots are:
| Root No. | Real | Imaginary | No of Iterations |
| 3 | 0.0155027043015898 | 0.867570016019774 | 4 |
| 2 | 0.0155027043015898 | -0.867570016019774 | 4 |
| 1 | 7.96899459139682 | 0 | 1 |
Calculated with http://www.savetman.com/roots.html








