Edexcel P2 2023 January — Question 4

Exam BoardEdexcel
ModuleP2 (Pure Mathematics 2)
Year2023
SessionJanuary
TopicLaws of Logarithms

  1. (i) Using the laws of logarithms, solve
$$\log _ { 3 } ( 4 x ) + 2 = \log _ { 3 } ( 5 x + 7 )$$ (ii) Given that $$\sum _ { r = 1 } ^ { 2 } \log _ { a } \left( y ^ { r } \right) = \sum _ { r = 1 } ^ { 2 } \left( \log _ { a } y \right) ^ { r } \quad y > 1 , a > 1 , y \neq a$$ find \(y\) in terms of \(a\), giving your answer in simplest form.