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Solve $\log_{10}(x + 9) = 2 + \log_{10} x$.
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: “Apply the law of logarithms for a quotient or a product, or use $2=\log_{10}100$” …
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