4MA1/2H Jun 2025, Question 15: Laws of indices
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2H (Higher) · Calculator · 3 marks
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The question, in short
Simplify fully (2a³/(10a⁷c²))⁻³.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 12a³/(10a⁷c²) = 1/(5a⁴c²)
- 2(1/(5a⁴c²))⁻³ = (5a⁴c²)³
- 3= 125a¹²c⁶
Answer125a¹²c⁶
Stuck on a step? Read the free lesson: Zero and Negative Indices with Letters
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