Question

Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in standard form.

4, -8, and 2 + 5i

Answer 1

(x-4), (x+8) and (x-2-5i) will be the factors of the polynomial and since complex roots always appear in conjugates: (x-2+5i) will also be a factor

Answer 2

multiply all of these factors - you have the answer

Answer 3

Thanks!

Answer 4

you are welcome