Asked by Sebastian
2 ln (x) = ln (20-x)
Answers
Answered by
drwls
ln(x^2) = ln(20-x); therefore
x^2 = (20 -x)
x^2 +x -20 = 0
(x +5)(x-4) = 0
x = -5 or 4.
x^2 = (20 -x)
x^2 +x -20 = 0
(x +5)(x-4) = 0
x = -5 or 4.
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