Answer:
[tex]a^{-2}=\frac{1}{a^2} \\\\a^{b-c}=\frac{a^b}{a^c}\\\\(\frac{a}{b}) ^c=\frac{a^c}{a^c}[/tex]
Step-by-step explanation:
Use your rules of exponents on these ones. Make sure that you keep your positives and negatives straight.
:)
