Question

find the factor of n^4 + n^2+1

Answer 1

Answer:

Let S=n4+n2+1

S=n4+2∗n2+1−n2=(n2+1)2−n2

S=(n2+1−n)(n2+1+n)

For n>1, S has two factors other than 1. So S is composite

Answer 2

Answer:

S has two factors other than 1