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Solve the equation $\ln(x^2 + 4) = 2\ln x + \ln 4$, and give your answer in exact form.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Logarithmic and exponential functions — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use the law for the logarithm of a power, quotient or product” …
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