Question 6
IndicesSimplify 3−5n/91−n × 27n+1
- A.35
- B.3
- C.32
- D.33
Show the answer and explanation
Answer: B (3)
Explanation
In powers of 3: 3−5n ÷ 32 − 2n × 33n + 3 = 3−5n − 2 + 2n + 3n + 3 = 31 = 3.
Simplify 3−5n/91−n × 27n+1
Answer: B (3)
In powers of 3: 3−5n ÷ 32 − 2n × 33n + 3 = 3−5n − 2 + 2n + 3n + 3 = 31 = 3.