Question

Решите 39 номер!!!!!!

Answer 1

$[tex]log^2_5(x)+log_5(x)=2\x textgreater 0\log_5(x)=t\t^2+t=2\t^2+t-2=0\a+b+c=0\t_1=1\t_2=-2\log_5(x)=1\x=5\log_5(x)=-2\x=5^{-2}= frac{1}{25}$[/tex]