SOLUTION: ln(x + 4) + ln(x) = ln(x + 40) not sure what to do

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Question 1006422: ln(x + 4) + ln(x) = ln(x + 40)
not sure what to do
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Use the fact that ln a + ln b = ln ab.

ln(x+4) + ln x = ln(x^2 + 4x)

So ln(x^2 + 4x) = ln(x + 40). You should be able to figure it from there.