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ok then, how about this false proof
The Beginning Of All Things To End.
The End Of All Things To Come.
There lies the mistake.
It would not be right to say a=b.
When square root is being taken on both sides of an equation, the plus or minus/minus or plus sign has an important role to play, it cannot be overlooked.
When you had taken the square roots of the LHS and the RHS in steps 2, 3, you have taken only the positive values. Remember square root on 1 is not +1 alone, it is ±1.
Character is who you are when no one is looking.
Correct Of course there will always be something wrong as 1 cannot equal 2