what is the answer to this math problem, simplify (-2)^-3?

👨🏻‍🏫 學術台數學

[匿名]

2009-07-06 6:48 pm

what exactly are the rules when doing this

回答 (3)

An ESL Learner

2009-07-06 7:20 pm

✔ 最佳答案

(-2)^(-3)
= 1/[(-2)^3]
= 1/(-8)
= -1/8

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cidyah

2009-07-07 1:56 am

(-2)^-3 = 1 / (-2)^3 = 1/ (-2)(-2)(-2) = -1/8

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[匿名]

2009-07-07 1:51 am

Negative to an odd power MUST be negative, so you know that. Then, 2^3 is 8. Then, taking to a negative power means you flip it, so...

-1/8

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