SOLUTION: How do I solve : ln(x)+ln(x+2)=ln(3x+20)
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Question 755787
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How do I solve :
ln(x)+ln(x+2)=ln(3x+20)
Answer by
reviewermath(1029)
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Q:
ln(x)+ln(x+2)=ln(3x+20)
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A:
ln[x(x + 2)] = ln(3x + 20)
x(x + 2) = 3x + 20
(x - 5)(x + 4) = 0
x =
, ln(-4) is not a real number