Concept explainers
(a)
To calculate:Number of solutions for the equation using the domain.
(a)
Answer to Problem 40WE
The number of solutions is “None”.
Explanation of Solution
Given information:
Equation:
Domain for equation:
For
That becomes
For
That becomes
For
That becomes
Since the left side is always zero, there are no solutions.
Thus,
The number of solutions is “None”.
(b)
To calculate:Number of solutions for the equation with use of the domain.
(b)
Answer to Problem 40WE
There is “More than one” solution.
Explanation of Solution
Given information:
Equation:
Domain for equation:
For
That becomes
For
That becomes
Since both
There is “More than one” solution.
(c)
To calculate:Number of solutions for the equation with the help of the domain.
(c)
Answer to Problem 40WE
The number of solutions is “None”.
Explanation of Solution
Given information:
Equation:
Domain for equation:
For
That becomes
For
That becomes
For
That becomes
Since the left side is always zero, there are no solutions.
Thus,
The number of solutions is “None”.
Chapter 1 Solutions
Algebra: Structure And Method, Book 1
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