Concept explainers
Error Analysis Describe and correct the error in simplifying the sum shown at the right.
To describe and correct: The error in simplifying the sum of two given polynomials.
Answer to Problem 38P
The error in simplifying the sum of two given polynomials is “not added the terms of like powers of x ”, and the correct sum is
Explanation of Solution
Given information:
The calculated erred sum of two polynomials is
Formula used:
In operation of addition the like power terms are added.
Calculations:
The given erred sum of two polynomial is
There is an error in the addition of the terms
Therefore, the correct sum of given polynomials is
Thus, the error in simplifying the sum of two given polynomials is “not added the terms of like powers of x ”, and the correct sum is
Conclusion:
The error in simplifying the sum of two given polynomials is “not added the terms of like powers of x ”, and the correct sum is
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