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Lesson
Exercises
Recommended
Tests
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Theory

Negative base and odd exponent

A power with a negative base and an odd exponent is always negative. Therefore, the parentheses can be omitted.
The odd exponent means that there are an odd number of negative factors in the product, and the product of each pair is positive.
This means that the product of all factors except one is positive. And the product of a positive and negative number is always negative.
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