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22-02-2020
Social Studies

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n³+2n is divisible by 3

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shahzeenwaqar1 shahzeenwaqar1

22-02-2020

Let’s suppose n=3,
3^3 + 2(3)
27 + 6
= 33

Now let’s check whether it’s divisible by 3:
33 / 3 = 11

33 is divisible by 3 that means n = 3

I know it’s complicated the way i wrote it but hope it helps :)

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