Question

Calcule:
a)log5 x=4 b) logx 343=3

Answer 1

A) log5 x=4
5^4 = x
x = 625

b) logx 343 =3

x³ = 343
x = Raiz cúbica de 343
x = 7

Answer 2

$a) \\ \log_5x=4 \\ \\ x=5^4 \\ \\ x=625 \\ \\ b) \\ \log_x343=3 \\ \\ x^3=343 \\ \\ x= \sqrt[3]{ 343} \\ \\ x= \sqrt[3]{7^3} \\ \\ x=7$