0580/12 May/Jun 2021, Question 14: Laws of Indices
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 1 mark
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The question, in short
Use index laws on 7ˣ ÷ 7⁴ = 7⁹ to find the value of x.
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Solution · 1 mark
- 17ˣ ÷ 7⁴ = 7ˣ⁻⁴
- 2x − 4 = 9
- 3x = 13
Answer13
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Also searched as: 0580/12/M/J/21 · 0580_s21_qp_12 · 0580 s21 12 · question 14.
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