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

Logarithmic and exponential functions — practice question

(main)[4]

Solve the equation $4^{x-2} = 4^x - 4^2$, and give your answer rounded to $3$ decimal places.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the laws of indices properly and determine $4^x$” …

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