Question 11
Indices and LogarithmsSolve the equation 5x × 5x+1 = 25
- A.−2
- B.−½
- C.½
- D.2
Show the answer and explanation
Answer: C (½)
Explanation
5^(2x + 1) = 5², so 2x + 1 = 2 and x = ½.
Solve the equation 5x × 5x+1 = 25
Answer: C (½)
5^(2x + 1) = 5², so 2x + 1 = 2 and x = ½.