SOLUTION: Find all real zeros of the polynomial function: f(z)=z^4-z^3-2z-4 I know that one of the real zeros is -1, but I use synthetic division it shows that I have a remainder of -4. I

Question 800102: Find all real zeros of the polynomial function: f(z)=z^4-z^3-2z-4
I know that one of the real zeros is -1, but I use synthetic division it shows that I have a remainder of -4. I'm so confused. Please help me with this problem.

Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
You are right, one of the real zeros is -1.
Don't forget when you are using polynomials to include a 0
for z^2 which is not present in your equation.
x = 2 is also a root
Hope this helps.
:-)
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