SOLUTION: log x +log (x+3) =log 54
What are the steps in solving this?
Algebra.Com
Question 327451: log x +log (x+3) =log 54
What are the steps in solving this?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
adding logs is analogous to multiplying quantities
log[x(x+3)] = log(54)
x^2 + 3x = 54 ___ x^2 + 3x - 54 = 0
factor the quadratic to find x
REMEMBER : logs of negative values are undefined
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