MathDB
Polynomial Divisiblity

Source:

January 2, 2006
algebrapolynomial

Problem Statement

The polynomial x2n+1+(x+1)2nx^{2n}+1+(x+1)^{2n} is not divisible by x2+x+1x^2+x+1 if nn equals (A) 17(B) 20(C) 21(D) 64(E) 65\text{(A)} \ 17 \qquad \text{(B)} \ 20 \qquad \text{(C)} \ 21 \qquad \text{(D)} \ 64 \qquad \text{(E)} \ 65