There are total of 14 attached problems and they look like these:
Find all possible rational roots of: f(x)=2x ^4 - 5x^3 +8x +4x+7
Find all the real roots of f(x) = x^3 + x^2 -8x -6
Find the number of possible positive and negative real zeros of :f (x) = 3x^3 -4x^2 -5x +1.
See the attached file.© BrainMass Inc. brainmass.com October 10, 2019, 4:17 am ad1c9bdddf
The solution contains the solution to the given roots polynomial functions.