Log x2 - log (x + 6) = 0?
Log x2 - log (x + 6) = 0.
Log x2 - log (x + 6) = 0.
En resumen
Log x² - log (x + 6) = 0 Log (x² / (x + 6)) = 0 (x² / (x + 6)) = 10 ^ 0 x² / (x + 6) = 1 x² = x + 6 x² - x - 6 = 0 (x - 3)(x + 2) = 0 x - 3 = 0 x + 2 = 0 x1 = 3 x2 = - 2.
Log x² - log (x + 6) = 0
Log (x² / (x + 6)) = 0
(x² / (x + 6)) = 10 ^ 0
x² / (x + 6) = 1
x² = x + 6
x² - x - 6 = 0
(x - 3)(x + 2) = 0
x - 3 = 0 x + 2 = 0
x1 = 3 x2 = - 2.
Para este tipo de ejercicios tienes que aplicar las propiedades de logaritmos. Log a + log b = log (ab) log x – log y = log(x / y) log a – log x – log y = log a - (log x + log y) = log a - (log (xy)) = log (a / xy) log…
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