Q. 11 D4.7( 6 Votes )

# (x + 1) is a factor of the polynomial xn + 1 whenA. n is a positive odd integerB. n is a positive even integerC. n is a negative integerD. n is a positive integer

As we know that (x + y) is a factor of the polynomial xn + yn, when n is an odd positive integer, so here we can see that y = 1, so, we can say that (x + 1) is a factor of the polynomial xn + 1 when n is a positive odd integer.

Hence the correct option is (a).

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