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

Logarithmic and exponential functions — practice question

(main)[4]

With all working shown, solve the equation $\ln(x^4 - 4) = 4\ln x - \ln 4$, and give your answer correct to $2$ 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 logarithm law for a product, quotient or power” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI