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9-115.

Simplify each numerical expression.

  1. Simplify within the absolute value signs.

    What is ?

    The absolute value of is .

  1. First find the absolute value of .

    The absolute value is the distance a number is away from , and is always a non negative number. Since is units away from zero, the absolute value is .

    What is the product of ?

  1. Simplify within the absolute value signs first.

    and . Therefore we have: 

    What is the absolute value for each of these numbers?