What is the factored form of each polynomial? c2−4c−21
(1 point)
Responses
(c+7)(c+3)
open paren c plus 7 close paren times open paren c plus 3 close paren
(c−7)(c−3)
open paren c minus 7 close paren times open paren c minus 3 close paren
(c+3)(c−7)
open paren c plus 3 close paren times open paren c minus 7 close paren
(c+7)(c−3