SOLUTION: solve for x
log(base 10)X+log(base 10)(X+1) = log(base 10)12
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Question 436260: solve for x
log(base 10)X+log(base 10)(X+1) = log(base 10)12
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
log(base 10)X+log(base 10)(X+1) = log(base 10)12
log(base 10)X(X+1) = log(base 10)12
X(X+1) = 12
X^2+X = 12
X^2+X-12 = 0
(X+4)(X-3) = 0
X = {-4,3}
Throw out the negative solution (extraneous) leaving:
X = 3
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