What are the zeros of the function f(x) = x2 + 8x + 4, expressed in simplest radical form? A x= 4+2/3

B x= -4 48

C x= -8V3

2

D x= -40473

2

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible