SOLUTION: Hi again, I could use some help with this problem: Solve the logarithmic equation: log (x+3) + log x = 1 Thanks, Louis

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Hi again, I could use some help with this problem: Solve the logarithmic equation: log (x+3) + log x = 1 Thanks, Louis      Log On


   

Question 46107: Hi again,
I could use some help with this problem:
Solve the logarithmic equation: log (x+3) + log x = 1
Thanks,
Louis
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
log (x+3) + log (x) = 1
log (x^2+3x) = 1
x^2 + 3x = 10^1
x^2 + 3x - 10 = 0
(x + 5)(x - 2) = 0
x = -5 or x = 2
Remember that you can not take a logarithm of a negative number, so your answer is two.