• Then it’s (8/2)x(2+2). The answer is 16

    Yes, the answer to that is 16, which isn’t the same as 8/2(2+2) (since you added a multiply to it and changed the expression).

    you’ll also have to put 8/2 in brackets as well

    No, 8/2 is two terms. I see you didn’t read the link about Terms then. If you put 8/2 into brackets, then you just changed the expression, and thus also the answer. According to your logic - add more brackets to the left - 4+8/2(2+2)=(4+8/2)(2+2)=32