Concept explainers
Find the number of possible positive and negative real zeroes.
Answer to Problem 34SGA
Explanation of Solution
Given information:
Calculation:
Here, we have:
Now, to find the number of possible positive real zeroes, we will count the sign changes for the coefficients.
Therefore, there is one positive real zero.
Now, to find the number of possible negative real zeroes, we will count the sign changes for the coefficients.
Therefore, there are two or zero negative real zeroes.
Now,
The possible values of
The possible values of
The possible rational zeors of
Now, by using graphing utility:
Hence, the rational zeroes of
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