Algebra-2

To determine the correct factored form of a polynomial with the given roots -5, 9i, and 11, we need to consider the following:

1. The root -5 gives the factor (x + 5) because when x = -5, the factor (x + 5) = (-5 + 5) = 0.

2. The root 11 gives the factor (x - 11) because when x = 11, the factor (x - 11) = (11 - 11) = 0.

3. The root 9i must have its conjugate -9i as a root as well. I...