Question

2=log de 625 na base x

Answer 1

log 625 = 2
   x
x² = 625
x = \/¨¨¨625
x = 25 

Answer 2

$log_{x} 625 = 2 \\ log_{x}5^{4}=2 \\ x^{2} = 5^{4} \\ \sqrt{x^{2}} = \sqrt{5^{4}} \\ x = 5^{2} \\ x = 25$

Espero ter ajudado