Negative bases with negative exponents
Multiply the base by itself as many times as the exponent says. A zero exponent gives 1, and a negative exponent means take the reciprocal.
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See worked examples
Evaluate (−9)⁻³. (Write a whole number or a fraction.)
Answer: -1/729
Evaluate 8⁻⁴. (Write a whole number or a fraction.)
Answer: 1/4096
Evaluate (−9)⁻¹. (Write a whole number or a fraction.)
Answer: -1/9
Tip: Multiply the base by itself as many times as the exponent says. A zero exponent gives 1, and a negative exponent means take the reciprocal.
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