Question 3
Indices and LogarithmsIf log10(3x − 1) + log104 = log10(9x + 2), find the value of x.
- A.1/3
- B.1
- C.2
- D.3
Show the answer and explanation
Answer: C (2)
Explanation
log 4(3x − 1) = log(9x + 2), so 12x − 4 = 9x + 2 and x = 2.
If log10(3x − 1) + log104 = log10(9x + 2), find the value of x.
Answer: C (2)
log 4(3x − 1) = log(9x + 2), so 12x − 4 = 9x + 2 and x = 2.