4024/12 Oct/Nov 2020, Question 12: Index Laws with Letters
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
Simplify two algebraic expressions: a power of a product, and a division involving fractions and powers.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Part (a) · 1 mark
Simplify (2x²)³.
- 1(2x²)³ = 2³ × (x²)³ = 8x⁶
Answer8x⁶
Part (b) · 2 marks
Simplify 6t³ ÷ ((2/3)t²).
- 16 ÷ 2/3 = 6 × 3/2 = 9
- 2t³ ÷ t² = t
- 36t³ ÷ ((2/3)t²) = 9t
Answer9t
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Also searched as: 4024/12/O/N/20 · 4024_w20_qp_12 · 4024 w20 12 · question 12.
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