a friend of mine from Sweden is trying to register to the forum, hereafter see what he write to me
" I have tried to register but at the end of the registration form there is a strange question which I must answer. I do not understand this question. Given x = 4, work out x square .... Do you know what they mean with work out??? The answer is not 8 as far as I understand."
The answer seems not to be 16 neither, could you tell me what kind of computation should be done?
After I think we will be able to do it

I do not remember to have this question when I registered
Best regards
Midship