175k views
2 votes
Whats the pattern 729, -243, 81, -27, 9

1 Answer

0 votes

Answer:

This is the product of three nines (three factors of 9). 9 × 9 × 9 × 9 = 6561 --> This is the product of four nines (four factors of 9). It's a common mistake among educators to state that 81 is what we get by "multiplying nine by itself twice".

User LongInt
by
6.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.