What are the factors of the cubic function f(x)=27x3+8? Choose each correct answer. Responses (9x2−6x+4) left parenthesis 9 x squared minus 6 x plus 4 right parenthesis (3x−2) left parenthesis 3 x minus 2 right parenthesis (9x2−6x−4) left parenthesis 9 x squared plus 6 x plus 4 right parenthesis (3x+2) left parenthesis 3 x plus 2 right parenthesis