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Apply logarithms to solve the equation $3^x = 2^{x+2}$, and give the answer correct to 3 significant figures.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Apply logarithms to solve the equation $3^x = 2^{x+2}$, and give the answer correct to 3 significant figures.
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Makes an attempt to use the power law for logarithms to reach $x\log 3 = \log 2 + 2\log 2$ or an equivalent form” …