5) Find Possible Positive, Negative or Imaginary Zeros. f(x) = 3x - 5x² + 6x - 4 %3D Count the number of sign changes. Positive Sign Changes = Find f(-x) = 3(-x)³ - 5(-x)² + 6(-x) - 4 simplify %3D

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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5) Find Possible Positive, Negative or Imaginary Zeros.
f(x) = 3x³ - 5x² + 6x - 4
%3D
Count the number of sign changes.
Positive Sign Changes =
Find f(-x) = 3(-x)³ - 5(-x)² + 6(-x) - 4
simplify
Count the number of sign changes.
Negative Sign Changes =
Types of
Roots
Positive
Imaginary
(Pairs)
Negative
Roots
Roots
Since f(x) has 3 total roots
&
6
7
Transcribed Image Text:5) Find Possible Positive, Negative or Imaginary Zeros. f(x) = 3x³ - 5x² + 6x - 4 %3D Count the number of sign changes. Positive Sign Changes = Find f(-x) = 3(-x)³ - 5(-x)² + 6(-x) - 4 simplify Count the number of sign changes. Negative Sign Changes = Types of Roots Positive Imaginary (Pairs) Negative Roots Roots Since f(x) has 3 total roots & 6 7
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