Problem 12.2: Two Expressions Rachel's argument: Let n& m represent two integers. Then 2n& 2m are two even integers. 2n 2m is the sum of two even integers. But 2n+ 2m= 2(n+ m) 2(n+ m) is an even integer. So the sum of two even integers is even. Provide reasons for each step of Rachel's argument. Does her argument prove the sum of any two even integers is A. even? Adapted from CMP2: Say It with symbols Page 4 of 6 hy 48

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