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2026 IGCSE 0580 February/March P22 Q20
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2026 IGCSE 0580 February/March P22 Q20
6 marks
Simplify.
\((27x^9)^{-\frac23}\)
[3]
Solve.
\(7^x=49^{1-2x}\)
[3]
Solution:
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(a) \(\dfrac1{9x^6}\). (b) \(x=\dfrac25\).
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