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A-10.

Simplify each expression below. Assume that the denominator in part (b) is not equal to zero. Homework Help ✎

  1. Use the rule of a negative exponent:

    Expand and factor out any 1s:

  1.   

    Use the rule of a negative exponent:

     

  1. What does the negative exponent mean? How can you simplify?

  1. Refer to problem A-9.