Question

Select one of the factors of x^3 + 4x^2 + 9x + 36.
Answer
None of the above
(x + 9)
(x^2 + 4)
(x^2 + 9)

Answer 1

x^2(x+4)+9(x+4)
(x^2+9)(x+4)
hence x^2+9