(see the cited equations below) and sorry for my bad english, it is 12 am here! I need sleep.....hahahahha

Disclaimer: l type equation[2] purposely complex, so that I can test new types of mathematical reasonings!

Hi, guys. In a nutshell, I calculated the equation "A" [1] and I obtained -4 e 4 as solutions of it. However, If I calculated a variant of equation "A" (which I know that I can simply solve log_10(100), but I want to try something new, i.e, "what if...") [2], I obtained just 4. I searched and discovered, by wikipedia, the "missing solution" case. In brief, some algebrac manipulations can lead the lost of a solution or a creation of new one! However, I dont know if this concept is true and exist. Thus, Could you verify it for me?…