lulu69331 lulu69331

15-11-2017
Mathematics

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Prove that 2 divides n2 + n whenever n is a positive integer.

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suadhreish suadhreish

15-11-2017

When ever a variable and a number are side by side(n2, which means n times 2) we do the opposite operation, which in this case is to divide n and 2 which equals n

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