Question

LOG DE X ELEVADO A 8 = -3 COM RESOLVO ?

Answer 1

Resposta:

log x^8 =-3

8 * log x=-3

log x=-3/8

x=10^(-3/8)

Answer 2

Resposta:

Resolvida de 2 modos

$log x^8=-3\\ \\ x^8=10^{-3}\\ \\ x=\sqrt[8]{10^{-3}} \\ \\ x=\sqrt[8]{{1\over10^3}}$

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$logx^8=-3\\ \\ 8log x=-3\\ \\ log x=-{3\over8}\\ \\ x=10^{-{3\over8}}\\ \\ x=\sqrt[8]{10^{-3}} \\ \\ x=\sqrt[8]{{1\over10^3}}$