It's not about you, it's about people in general. I see so much of this lately, people who make the most basic mistakes and say "So what? I don't care."
But it's important to know these things, otherwise why do we even have public a government education system? Why do we go to any schools at all? It's all right not to understand integral calculus or not to be able to properly anolyze a poem, but we should all at least know the alphabet.
Fundamental order of operations is mathematical alphabet.
I just kind of want to ask "Where were the teachers?", but I guess it's no use. I'll go and be shocked and disillusioned somewhere else.
I see it like this. No matter your age or educational background. As a matter of fact some of the older crowd around did not have the educational opportunities that are available to a lot of young people today.
One can convey a verbal message in many different ways and still get the point across. But if you are using a formula to convey a problem and you want me to get the same answer as you, it better be from left to right and it better contain...( ). FOO or not.
Having said that, I think the OP got her answer.
EDIT : If the WIKI or UESP is trying to display and convey an equation to figure the HPs of a given follower, then they should include it in a form that everyone worldwide would be able to understand. To me that includes ( ).
EDIT 2 : I fixed your post for ya.