Log(16 - x ^ 2) / log (3x - 4) = log 2?
Log(16 - x ^ 2) / log (3x - 4) = log 2.
Log(16 - x ^ 2) / log (3x - 4) = log 2.
En resumen
Log(16 - x ^ 2) / log (3x - 4) = log 2 log(16 - x² - 3x + 4) = log = log2 log( - x² - 3x + 20) = log2 - x² - 3x + 20 = 2 0 = x² + 3x - 18 0 = (x + 6)(x - 3) x + 6 = 0 ∨ x - 3 = 0 x = - 6 x = 3.
Lunaross2984
Log(16 - x ^ 2) / log (3x - 4) = log 2
log(16 - x² - 3x + 4) = log = log2
log( - x² - 3x + 20) = log2 - x² - 3x + 20 = 2
0 = x² + 3x - 18
0 = (x + 6)(x - 3)
x + 6 = 0 ∨ x - 3 = 0 x = - 6 x = 3.
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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