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Unformatted text preview: example, the final step of an equation may produce (x-2) and (x+5), therefore the answers would be 2 and -5. However after performing a check you may discover that -5 is not a working solution therefore leaving 2 as the only solution. Without a check this may not have come to pass....
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This note was uploaded on 02/16/2012 for the course MAT 117 117 taught by Professor Billings during the Spring '10 term at University of Phoenix.
- Spring '10