Olympiad Mathematics | The four solutions, fully solved

This is beautifully solved #olympiad #exponential #algebra #maths #mathematics #mathstricks #education #math #exponentialequation

[RealQinnMalloryu]

2a^2^2 1a^1^2 1a^2 (a ➖ 2a+1).16 4^4 2^2^2^2 1^1^1^2 1^2 (a ➖ 2a+1).