CAIE P3 Specimen — Question 2

Exam BoardCAIE
ModuleP3 (Pure Mathematics 3)
SessionSpecimen
TopicExponential Functions
2 Using the substitution \(u = 3 ^ { x }\), solve the equation \(3 ^ { x } + 3 ^ { 2 x } = 3 ^ { 3 x }\) giving your answer correct to 3 significant figures.
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