Don't feed the troll. Andrew thinks he has solved all of mathematics. He has proved that the square root of -25 is -5. He thinks you can resolve all mathematical formulae with parentheses by simply removing the parentheses. He claims allegiance to an academic institution that sounds plausible but seems to have exactly one staff member, Andrew Lehti. If you prove he is wrong that merely shows that you don't understand because you don't have his superior intellect.