SOLUTION: solve: Log x + log(x-15) = 2

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Question 332263: solve: Log x + log(x-15) = 2
Answer by edjones(8007) About Me  (Show Source):
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Log x + log(x-15) = 2
10^(log(x))*10^(log(x-15))=10^2
x(x-15)=100
x^2-15x-100=0
(x-20)(x+5)=0
x=20
.
Ed