3.38: Single lg expression from Q6 stem

0606/11/O/N/23 — Question 5 · 3 marks · Log laws

JSON Q5 is permutations; attached MS includes the adjacent lg stem used here.

(a)
Write 2+2lg⁡x−12lg⁡42 + 2\lg x - \dfrac{1}{2}\lg 4 as a single logarithm to base 1010.
[3]