Question

1) Encontre um número x > 0 tal que: log₅ x + log₅ 2 = 2

Answer 1

$\log_5 x+\log_5 2=2$

$\log_5 2x=2$

$5^{\log_5 2x}=5^2$

$2x=5^2$

$2x=25$

$x=\frac{25}{2}$