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UNIT
6
6.4: Find Zero and Negative powers

Remember that because a negative exponent tells us to "repeatedly divide" it does NOT affect the positive or negative sign of the answer.

Rewrite the expression using only positive exponents. Then, evaluate the expression.

16
$$3^{-2}$$
17
$$3^{-4}$$
18
$$\text{-}4^{-2}$$
19
$$(\text{-}5^{-3})$$
20
$$(\frac{1}{2})^{-2}$$
21
$$(\frac{2}{3})^{-3}$$