Concept explainers
To solve the given equation using graphing.
Answer to Problem 21PPS
The values of x are -10 and 8 .
Explanation of Solution
Given information :
The function provided is
Formula used :
The given equation would be graphed as a function and the points of x-intercepts would be the results. For these points, the x-coordinate shall serve the purpose of the results.
To cross check, put these values in the given equation to confirm that the left-hand side and right-hand side matches.
Calculation :
The graph of the given equation is
In this, the parabola x-intercepts at
Now, cross check by putting these values of x-coordinate in the given equation.
This is the given equation.
Putting
Simplifying this
Now, put the other result.
Putting
Simplifying this
Thus the test is a success and the result is -10 and 8 .
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Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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