Question 2(a)
[Maximum number: 3]
Show that the equation can be written as a quadratic equation in x.
CAIE A-Level Mathematics 2.2.1 Logarithm Laws
Practise using product, quotient and power laws to combine logarithms, remove them and solve resulting algebraic equations while enforcing positive logarithm arguments.
How this is tested
- combine log terms into one logarithm using the correct product, quotient or power law
- equate positive arguments after removing equal logarithms and solve the resulting equation
- reject any algebraic root that makes a logarithm argument zero or negative