Concept explainers
To calculate: the rational zeros of the polynomial function

Answer to Problem 77E
Explanation of Solution
Given information: Given function is
Concept Used:- Rational Root Test:- Possible rational roots
Calculation:- Given that
Here, constant term = 9 and leading coefficient = 4
Possible factors of constant terms are
Possible factors of leading coefficient = 1, 2, 4
Possible rational roots are =
Since, we know zeros of a polynomial satisfies polynomial i.e. say
Now, to find roots from possible roots we just put these points in polynomial and the point, satisfies polynomial will be the root of polynomial.
At
At
At
At
At
At
At
Hence, x =
Chapter 2 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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