Concept explainers
a.
Find the real zeros of the givenequation algebraically.
a.
Explanation of Solution
Given:
The given function is,
Method:
Byusingfactorization method.
Calculation:
Consider,
To find zeros of given function, put
So, the real zeros of the given function is -8 only.
b.
Draw the graph of given function using graphing utility.
b.
Explanation of Solution
Given:
The given function is,
Graph:
The graph of the above function is given below:
Interpretation:
Since, the graph of given function cuts the x-axis at-8. Hence, the real zeros of the given function is -8.
c.
To compare the results obtained algebraically and graphically.
c.
Explanation of Solution
Given:
The given function is,
Calculation:
By comparing the solution of the given function algebraically and graphically, We can say that the real zeros of the given function isx=-8.
Chapter 2 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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