Fundamental Theorem of Algebra- A German mathematician, Carl Friedrich Gauss, is credited with proving this theorem.
If P(x) is a polynomial of degree 
, then P(x)=0 has exactly n roots, including multiple and complex roots.
-Quadratic polynomial equations have 2 roots
-Cubic polynomial equations have 3 roots
Every polynomial equation of degree 
has exactly n roots, which includes multiple and complex roots.
There is at least one complex zero, when the polynomial function of degree is greater than 1.
Every polynomial of degree where n is greater than 1 has n linear factors.
To find the zeroes of a polynomial in the calculator follow the steps below:
Practice Problems
1. Find the number of roots: 2-x4+x2=0
2. Find all the zeroes: P(x)=x4-4x3-x2+20x-20
