${\log _6}36$

${\log _6}4 + {\log _6}9$

${\log _6}2 - {\log _6}12$

correct approach     (A1)

eg     ${6^x} = 36,{\text{ }}{6^2}$

$2$      A1     N2

[2 marks]

correct simplification     (A1)

eg     ${\log _6}36,{\text{ }}\log (4 \times 9)$

$2$      A1      N2

[2 marks]

correct simplification     (A1)

eg     ${\log _6}\frac{2}{{12}},{\text{ }}\log (2 \div 12)$

correct working     (A1)

eg     ${\log _6}\frac{1}{6},{\text{ }}{6^{ - 1}} = \frac{1}{6}{,6^x} = \frac{1}{6}$

$-1$     A1     N2

[3 marks]