*Fundamental Theorem of Algebra*
In this theorem, every polynomial with a degree greater than 0, has at least one root in the set of complex numbers. For example, if you had the roots -2,-i, i, you could factor and solve the problem.
*Complex Roots to Polynomial Equations*
When you have your two roots, you have to factor it. Then you simplify and solve like in this example shown below.
*The Conjugate Pair Theorem*
In this theorem, if a±bi is a zero of f(x), then a∓bi is also a zero. Like in the video I watched, suppose that has these were zeros in the picture shown below. You would have to find 3 more zeros like in this example.