Concept explainers
(a)
To find evaluate the expression and then simplify.
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 53E
Explanation of Solution
Given information:
Formula Used: Factorisation
Calculation:
(b)
To simplify the expression and then evaluate.
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 53E
Explanation of Solution
Given information:
Formula Used: Factorisation
Calculation:
Simplest form of
(c)
To compare the result.
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 53E
Results from parts (a) and (b) are same.
Method (b) requires less work because it needs less calculation.
Explanation of Solution
Given information:
Formula Used: Factorisation
Calculation:
Results from parts (a) and (b) are same.
Method (b) requires less work because it needs less calculation.
(d)
To compare the result.
(d)
![Check Mark](/static/check-mark.png)
Answer to Problem 53E
Results are same.
Explanation of Solution
Given information:
Formula Used: Factorisation
Calculation:
Simplest form of
So, Results are same.
Chapter 4 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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