Question 12
IndicesSolve the equation 8x−2 = 2/25.
- A.1/5
- B.2/5
- C.5
- D.10
Show the answer and explanation
Answer: D (10)
Explanation
8/x² = 2/25 gives x² = 100, so x = 10 (the positive root is the one offered).
Solve the equation 8x−2 = 2/25.
Answer: D (10)
8/x² = 2/25 gives x² = 100, so x = 10 (the positive root is the one offered).