0580/23 Oct/Nov 2021, Question 21: Fractional Indices with Letters
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 2 marks
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The question, in short
Simplify the expression (243y¹⁰)^(3/5) fully, giving the answer in its simplest form.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1243^(1/5) = 3, so 243^(3/5) = 3³ = 27
- 2(y¹⁰)^(3/5) = y⁶
- 327y⁶
Answer27y⁶
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