Question

if -3 + i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?

Answer 1

-3 - i

Explanation:

This is true, because when solving for an imaginary solution through a polynomial, the form A ± Bi will always be adhered. A and B are both constants.

(Constants are just any real number, like 1, 2.35, or
`(1)/(2)`.)