Concept explainers
To find: the number of possible positive and negative zeros.
Answer to Problem 60E
The number of positive real zeros are either three or one and the negative zeros are zero.
Explanation of Solution
Given information:
The function is
Calculation: to find the number of positive real zeros, find the change in sign,
In the function sign change three times so the number of positive zeros are either three or one.
Now substitute
In the function the sign is unchanged,
Thus the number of negative zeros is zero.
Chapter 9 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
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University Calculus: Early Transcendentals (4th Edition)
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