Question 830237
The base is to be {{{sqrt(5)}}}?


{{{(sqrt(5))^x=(1/5)}}}
{{{(5^(1/2))^x=1/5}}}
{{{5^(x/2)=1/5=5^(-1)}}}


Because equal bases, the exponents are equal.
{{{x/2=-1}}}
{{{highlight(x=-2)}}}