Question

r^3+r^2+4r+4 factor complete.. which of the following is a factor of the given polynomial....A) (r^2+1) B) (r+4) C) (prime D) (r^2+4)

Answer 1

Hint:

r^3 + r^2 + 4r + 4 = r^2(r + 1) + 4(r + 1)