Write this expression with a positive exponent and then simplify. 9a^-1

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Question

Write this expression with a positive exponent and then simplify.
9a^-1

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Math Alice 2 weeks 2022-01-10T10:50:04+00:00 2022-01-10T10:50:04+00:00 1 Answer 0 views 0

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Rose · Answer 1 · 2022-01-10T10:51:40+00:00

Rose

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2022-01-10T10:51:40+00:00 January 10, 2022 at 10:51 am

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When you have a negative exponent, you move the base with the negative exponent to the other side of the fraction to make the exponent positive.

For example:

$5^{-2}$ or $\frac{5^{-2}}{1}=\frac{1}{5^2} =\frac{1}{25}$

$\frac{1}{x^{-4}}=\frac{x^4}{1}$ or $x^4$

$3x^{-5}$ or $3^1x^{-5}=\frac{3}{x^5}$

$9a^{-1}$ Make the exponent positive

$\frac{9}{a}$ (this is as far as you can simplify)