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What are the next two numbers in this pattern? 3, –9, 27, –81, . . .

2 Answers

6 votes
I believe it is 243 and -738
User Hoopje
by
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3 votes

Divide -81 by 27. You get -3.

Divide 27 by -9. You get -3.

Divide -9 by 3. You get -3.

Every new term is the previous term multiplied by -3.

Multiply -81 by -3: -81 * (-3) = 243

Multiply 243 by -3: -3 * 243 = -729

Answer: 243, -729

User Silvia H
by
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