SOLUTION: solve. where appropriate, include approximations to the nearest thousandth. if no solution exists, state this log (x + 3) + log x = 1

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Question 315213: solve. where appropriate, include approximations to the nearest thousandth. if no solution exists, state this
log (x + 3) + log x = 1
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
log (x + 3) + log x = 1
log x(x + 3) = 1
x(x + 3) = 10^1
x^2 + 3x = 10
x^2 + 3x - 10 = 0
(x+5)(x-2) = 0
x = {-5, 2}
Toss out the negative solution, it is an extraneous solution leaving:
x = 2