Question

Find a polynomial function P of the lowest possible degree, having real coefficients, a leading coefficient of 1, and

with the given zeros.
1+2i, -2, and 1
The polynomial of lowest degree is P(x) =

Answer 1

HI,

lowest degree is 4

Explanation:

P(x)=(x+2)(x-1)(x-(1+2i))(x-(1-2i))