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$\left (x^{n}+a^{n} \right)$ is divisible by $(x+a)$ :

1. For all values of $n$
2. Only for even values of $n$
3. Only for odd values of $n$
4. Only for prime values of $n$

(x^n - a^n) is divisible by (x - a) for all values of n.

(x^n - a^n) is divisible by (x + a) for even values of n.

(x^n + a^n) is divisible by (x + a) for odd values of n.

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344 points

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