Concept explainers
To find: The number of possible positive real zeros and the number of possible negative real zeros for function
Answer to Problem 21E
Possible zeros:
Explanation of Solution
Given information:
Calculation:
Possible zeros:
Descartes Rule of Signs gives:
0 or 2 positive roots, 0 or 2 negative roots.
Using synthetic division we find
Making
Again using synthetic we find
So:
Factoring the quadratic we find:
So the zeros are:
Chapter 4 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
University Calculus: Early Transcendentals (3rd Edition)
Precalculus (10th Edition)
Thomas' Calculus: Early Transcendentals (14th Edition)
Single Variable Calculus: Early Transcendentals (2nd Edition) - Standalone book
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning