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Home > MC1 > Chapter 8 > Lesson 8.2.4 > Problem 8-69

8-69.

Evaluate the expressions below using , , and .

  1.  

    Replace each variable with its value.

    Simplify the expression.

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    Follow the steps as outlined in part (a). Remember to work within the parentheses first.

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    Again, you can substitute each variable for its value then simplify the expression.
    Remember that
    means .