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Resolva a seguinte questão de logarítimos na base 2
Questão para trabalho escolar. Procurei em sites coletivos mas sem resposta, se conseguir a resposta dessa questão vou tirar total na nota final pois só essa questão que me falta. Achei essa questão muito complicada em relação as anteriores que já havia feito
Resolva:
12 + log² x (base 2) = 7 log x (base 2)
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Answer #1
12 + log²x – 7log²x = 0
12 – 6log²x = 0
12 = 6log²x
(simplifique por 6)
2 = log²x
(aplique a propriedade fundamental do logaritmo)
x=2²= 4
x=4