Mathematics 9709 · AS & A Level · Logarithmic and exponential functions

Logarithmic and exponential functions — practice question

(main)[4]

If $2\ln(x + 4) - \ln x = \ln(x + a)$, find $x$ in terms of $a$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use a logarithm property correctly at least once” …

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