MAT117Week4ConceptCheck - solution. For example, if there...

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MAT/117 1. Exercise: Week Four Concept Check Post a 50-word response to the following: When solving a rational equation, why is it necessary to perform a check? Multiplying both sides of any equation by the LCM may result in solutions that are not the correct solutions of the original equation. Checking possible solutions in the original equation ensures that the denominator does not equal zero which would be a false solution or an undefined
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Unformatted text preview: solution. For example, if there is a solution of y=0, and in the original equation there is 5y, it would be necessary to discard the y=0 solution because it would make 5y undefined. There is also the possibility of making mistakes during the attempt to solve equations. Performing a check ensures a correct answer which is the main purpose of checking....
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This note was uploaded on 06/25/2010 for the course MAT117 MAT117 taught by Professor A.b. during the Spring '10 term at University of Phoenix.

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