Question 44543
if i have a quintic function with two real zeros i know that one real zero has a multiplicy of 2 does that mean the other real zero has to have a multiplicty of three?
No, it doesn't tell you anything about the other three zeroes.

How many imaginary zeros should i get? If you get one complex zero and
if the coefficients of the polynomial are all real then you will have
another complex zero called the conjugate of the 1st.  That's about all
you know. 

The same for a cubic; if i have one real zero what is the multiplicty of it?
Can't tell.

Cheers,
Stan H>