To find: The expression in representing the difference of the areas of the windows.
Answer to Problem 42PPE
The value is
Explanation of Solution
Formula used:
Substitution method is used.
Calculation:
Consider the area of the two square windows is as follows,
The above equation can be rewritten as follows,
The difference between the areas of the two square windows is calculated as follows:
The Second method to calculate the difference between the areas of the two square windows is as follows,
Without using factor difference between the areas of the two square windows is calculated by the above first method, so the area will be equal to
With use of factored form of areas, the difference between the areas of the two square windows is calculated as follows,
Conclusion:
The value is
Chapter 8 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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