tolong bantu dan caranya

jika f(x) = 2x
maka f'(x) = 2
jadi f'(0) = 2

F (x) = 2x maka F(0) + F(0) =
2x = f (x) = F(0) + F(0) ((--- di balik
F(0)+ F(0) = f (x) = 2x coret x dalam kurung dan 2x
F(0) +F(0) = 2