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Express with a negative integer as exponent
 i)$ a^{4} \times a^{3} \times a^{-5} $
To do: Express with a negative integer as exponent
Solution:
i)$ a^4 \times a^3 \times a^-5$
= $a^(4+3-5) = a^2$
= $\frac{1}{a^{-2}}$
Therefore the answer is $\frac{1}{a^{-2}}$
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