[tex] \bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad
a^n\implies \cfrac{1}{a^{-n}}
\\\\
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\cfrac{-8x^6}{4x^{-3}}\implies \cfrac{-8}{4}\cdot \cfrac{x^6}{x^{-3}}\implies -2\cdot x^6\cdot x^{+3}\implies -2x^{6+3}\implies -2x^9 [/tex]
