Which of the following cannot be a factor of x5-ax3+bx2+200?
a)x3-8
b)x2-25
c)x+5
d)x+15
Question :
One of the factors of x5+x+1 is
(1) 2x2 - x - 1
(2) x3 - x2 + 1
(3) x2 - 2x2 + 1
(4) x3 + x2 + 1