Lesson: Descartes' Rule of Signs

In this lesson, we will learn how to use Descartes’ rule of signs to get all possible numbers of positive and negative real roots.

Sample Question Videos

Q1:

Using Descartes’s rule of signs, find which of the following describes the possible real zeros of .

Q2:

Using Descartes’s rule of signs, find which of the following describes the possible real zeros of .

Q3:

Using Descartes’s rule of signs, find which of the following describes the possible real zeros of .

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