Concept explainers
Find the number of possible positive real, negative real and rational zeroes.
Answer to Problem 35SGA
Explanation of Solution
Given information:
Calculation:
Consider the given function,
To find the possible positive real zeroes, count the number of sign changes for coefficients,
There are two changes, so there are two or zero positive real zeroes.
Now find the possible negative real zeroes
There is one change, so there are one negative real zero.
Now find the possible zeroes,
Possible value of
Possible value of
Possible rational zeroes,
Now test the zeroes using by synthetic division and remainder theorem,
Since, there are only two positive real zeroes and
Hence the possible positive real, negative real and rational zeroes for
Chapter 4 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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