4024/12 May/Jun 2020, Question 21: Zero and Negative Indices with Letters
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 2 marks
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The question, in short
Simplify the expression ((2x²)/x⁵) raised to the power −3, giving the result in simplified form.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 12x²/x⁵ = 2/x³
- 2(2/x³)⁻³ = (x³/2)³
- 3= x⁹/8
Answerx⁹/8
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