What is the value of the expression when m=x+1? A
3(x−4)

B
3(x−6)

C
3(x−5)+1

D
3(x+5)+1

Which zero pair could be added to the function f(x) = x2 + 12x + 6 so that the function can be written in vertex form? o 3, -3o 6,629,-936, 36