Question: Exercise 3: Using a direct proof, show that: 1. Vx x2 +3x is an even number. 2. n positive prime number such that n+1, n+2,

Exercise 3: Using a direct proof, show that: 1. Vx x2

Exercise 3: Using a direct proof, show that: 1. Vx x2 +3x is an even number. 2. n positive prime number such that n+1, n+2, n+3, n+4 are not prime

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