How do I show that this (see below) has no solutions?

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Originally Posted by dwsmith How do I show that this (see below) has no solutions? Just use every possiblity. b=0,1,2,3,4 and show none of them make the equation true!

Originally Posted by TheEmptySet Just use every possiblity. b=0,1,2,3,4 and show none of them make the equation true! I was hoping for a clearing way.