Question 19
IndicesSimplify (5x × 25x−1)/125x+1
- A.52x−1
- B.5x+2
- C.5-5
- D.5x+1
- E.53.
Show the answer and explanation
Answer: C (5-5)
Explanation
Write everything as powers of 5: 5ˣ × 5^(2x − 2) ÷ 5^(3x + 3) = 5^(3x − 2 − 3x − 3) = 5⁻⁵.
Simplify (5x × 25x−1)/125x+1
Answer: C (5-5)
Write everything as powers of 5: 5ˣ × 5^(2x − 2) ÷ 5^(3x + 3) = 5^(3x − 2 − 3x − 3) = 5⁻⁵.