Question 1
Indices and LogarithmsSolve: 8x−2 = 43x
- A.−2
- B.−1
- C.1
- D.2
Show the answer and explanation
Answer: A (−2)
Explanation
In powers of 2: 2^(3x − 6) = 2^(6x), so 3x − 6 = 6x and x = −2.
Solve: 8x−2 = 43x
Answer: A (−2)
In powers of 2: 2^(3x − 6) = 2^(6x), so 3x − 6 = 6x and x = −2.