college algebra
posted by ash .
form a polynomial f(x) with real coefficients having the given degree and zeros
degree 4 zeros 5+3i;3 multiplicity 2
enter the polynomial
f(x)=a?()

see my reply to your other question above
for a zero of 3 with multiplicity of 2
we would have (x3)(x3) or (x3)^2 as part of the function.
For the complex root of 5+3i , there is of course a matching 53i root
once you have that , it is simple algebra