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0580/21 May/Jun 2022, Question 15: Exponential Equations

Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 1 mark

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The question, in short

Solve the exponential equation 4ˣ = 1/64 and state the value of x.

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Solution · 1 mark

  1. 11/64 = 1/4³ = 4⁻³
  2. 2x = −3

Answer−3

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