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secondary 3 | A Maths
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Shan Kuek
Shan Kuek

secondary 3 chevron_right A Maths chevron_right Singapore

Help me out please!!

Date Posted: 5 years ago
Views: 222
Eric Nicholas K
Eric Nicholas K
5 years ago
ln (x - 4) = ln x - 4

(The LHS and RHS are not the same thing)

Bringing over lns to one side,
ln x - ln (x - 4) = 4
ln [x / (x - 4) ] = 4

Converting to index form,
x / (x - 4) = e^4
Solve for x.

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Eric Nicholas K
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