Hello gibsonrocker800.
I think that when you write a scientific program, you should always use the most accurate data type to represent a number, like Double.
You will need to differentiate a simple polynomial like the one you gave us initially. If you can't do differentiation then Newton's method won't help you much. In that case, look at the Bisection or Secant methods. Can you explain your SyntheticDivision class and what it does?
Thank you.
