Question 1
LogarithmsIf 3 log a + 5 log a − 6 log a = log 64, what is a?
- A.4
- B.6
- C.8
- D.16
- E.32.
Show the answer and explanation
Answer: C (8)
Explanation
The left side is (3 + 5 − 6) log a = 2 log a = log a2. So a2 = 64 and a = 8.
If 3 log a + 5 log a − 6 log a = log 64, what is a?
Answer: C (8)
The left side is (3 + 5 − 6) log a = 2 log a = log a2. So a2 = 64 and a = 8.