How do I simplify expressions with negative exponents.

i don't know this and i am studying for a big test i wasn't there for the lesson and the notes don't make sense to me
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1 Answer

A negative exponent is just the reciprocal of the quantity with the corresponding positive exponent.

Examples: x-2=1/x2, x3y-4=x3/y4, (3x)-2=1/(3x)2=1/(9x2), 1/x-5=x5, ...

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