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Rezolvati in multimea numerelor reale ecuatia log2 (3x-1) - log2 5 = 0.

Răspuns :

 

[tex]\displaystyle\bf\\log_2(3x-1)-log_2(5)=0\\\\log_2(3x-1)=log_2(5)\\\\\implies~3x-1=5\\\\3x=5+1\\\\3x=6\\\\x=\frac{6}{3}\\\\\boxed{\bf x=2}[/tex]

 

 

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