Respuesta:
n = 2
Explicación paso a paso:
(3^n - 1) (9^n + 3^n + 1) = 728
3^n = x
(x - 1)(x² + x + 1) = 728
x³ - 1 = 728
x³ = 728 + 1
x³ = 729
x = ∛729
x = 9
3^n = 9
lo siento apenas voy en primaria
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Verified answer
Respuesta:
n = 2
Explicación paso a paso:
(3^n - 1) (9^n + 3^n + 1) = 728
3^n = x
(x - 1)(x² + x + 1) = 728
x³ - 1 = 728
x³ = 728 + 1
x³ = 729
x = ∛729
x = 9
3^n = 9
n = 2
Respuesta:
lo siento apenas voy en primaria