Stitz-Zeager_College_Algebra_e-book

2 to solve this nonlinear inequality we follow the

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ant term, a0 = −3, and divide them by each of the factors of the leading coefficient a4 = 2. The factors of −3 are ± 1 and ± 3. Since the Rational Zeros Theorem tacks on a ± anyway, for the moment, we consider only the positive factors 1 and 3. The factors of 2 are 1 and 2, so the 3 Rational Zeros Theorem gives the list ± 1 , ± 1 , ± 3 , ± 2 or ± 1 , ± 1, ± 3 , ± 3 . 1 2 1 2 2 Our discussion now diverges between those who wish to use technology and those who do not. 3.3.1 For Those Wishing to use a Graphing Calculator At this stage, we know not only the interval in which all of the zeros of f (x) = 2x4 +4x3 − x2 − 6x − 3 are located, but we also know some potential candidates. We can now use our calculator to help us determine all of the real zeros of f , as illustrated in the next example. Example 3.3.3. Let f (x) = 2x4 + 4x3 − x2 − 6x − 3. 1. Graph y = f (x) on the calculator using the interval obtained in Example 3.3.1 as a guide. 2. Use the graph to help narrow down...
View Full Document

This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

Ask a homework question - tutors are online