d. -2,-1 6. a. Which of the following is the same as (x - 6)?? x2 - 12x - 36 b. x2 - 12x + 36 x2 + 12x - 36 d. x2 + 12x + 36 C. 7. Which is the same as xy + y?? a. (x + y) (x2 - xy + y) b. (x + y) (x2 + xy - y) c. (x - y) (x2 - xy + y²) d. (x - y) (x2 + xy - y)