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Zero Exponent

x n+ a n is d...

Question

${(x)}^{n} + {(a)}^{n}$ is divisible (remainder 0) by x + a, then n can be

7028

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861

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26

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782

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Solution

The correct option is B $861$
THEOREM: $x^{n} + a^{n}$ is divisible by $(x + a)$ if n is odd number.
so odd value of n among 4 above options is (B) $= 861$ .

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