Question

Which of the following is the correct factorization of the polynomial below?

x³-18
A. (x+3)(x-6)
B. (x-3)(x+6)
C. (x+3)(x² - 4x+6)
D. The polynomial is irreducible.
SUBMIT

Answer 1

Answer: D. The polynomial is irreducible.

From the explanation below we do not get polynomial .

Explanation:

A.(x+3)(x-6)

= x^2-6x+3x-18

=x^2-3x-18

B.(x-3)(x+6)

=(x^2+6x-3x-18)

=x^2+3x-18

C.(x+3)(x^2-4x+6)

=x^3-4x^2+6x+3x^2-12x+18

=x^2-x^2-6x+18

D.The polynomial is irreducible