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9-132.

Simplify each of the following expressions.  

  1.  

    Convert the mixed number into a fraction greater than one.

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    Notice that the in the denominator would have an exponent of .

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    This can be rewritten as:

    See part (b).

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    Use the Order of Operations.

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    Use the Order of Operations.

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    Notice that squaring a negative number has the same result as multiplying two negative numbers: the product is always positive.

  1. Follow the Order of Operations.

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