Question 582495
ln x + ln(x + 2) = 1
ln(x(x+2)=1
ln(x^2+2x)=1
e^1=x^2+2x
x^2+2x-e=0
solve by quadratic formula:
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
a=1, b=2, c=-e
x=[-2±√(4-4*1*-e)]/2*1
e≈2.71828
x=[-2±√(4+4e)]/2
x=[-2±3.86]/2
x≈.93
or
x≈-2.93