Question 686836
log x + log (x-1)=log 30
log x(x-1)=log 30
x(x-1)= 30
x^2-x = 30
x^2-x-30 = 0
(x+5)(x-6) = 0
x = {-5. 6}
we can throw out the negative solution (extraneous) leaving:
x = 6