In this lesson, we learn how to find all the zeros of a fourth degree polynomial by using the fundamental theorem of algebra, linear factorization, and the rational root test. We are also shown how to identify the number of positive and negative real roots using Descartes' rule of signs. Through a step-by-step process, the instructor demonstrates how to factor the polynomial completely and find all the real and rational roots. Overall, this lesson is a valuable resource for those looking to master the process of finding zeros of polynomials.
Find all the zeros of a polynomial to the fourth degree
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