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Rezolvati in multimea numerelor reale ecuatia 8^8=2^2x+1

Răspuns :

16.777.216=4x+1
16.777.216-1=4x
16.777.225=4x
16.777.215:4=x
4.194.304=x
(2³)^8= 2^(2x+1)
 2^24=2^(2x+1)
2x+1=24
 2x=23
 x=23/2