Question 366154
{{{ln x + ln (x+7) = -5}}}
{{{ln(x(x+7))=-5}}}
{{{x(x+7)=e^(-5)}}}
{{{x^2+7x=e^(-5)}}}
{{{x^2+7x+49/4=e^(-5)+49/4}}}
{{{(x+7/2)^2=e^(-5)+49/4}}}
{{{x+7/2=0 +- sqrt(e^(-5)+49/4)}}}
{{{highlight(x=-7/2 +- sqrt(e^(-5)+49/4))}}}