Orchid XP v8 wrote:
> For example, (A*B)^2 - 4*(A+B) = (A-B)^2. Obvious once you know, but > DAMN... I've have never thought of it!>
Well that is true for some values of A an B - But probably not as many
as you think.
Whereas (A+B)^2 - 4*(A+B) = (A-B)^2 is true a few more cases.
Unless you have redefined the * and + operators :)
