Question: 14. Problem 14. Use proof by contradiction to prove the following: If x is an odd integer, then x2 + 3x + 1 is odd.

14. Problem 14. Use "proof by contradiction" to prove the following:

14. Problem 14. Use "proof by contradiction" to prove the following: If x is an odd integer, then x2 + 3x + 1 is odd. Solution

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