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Home > AC > Chapter 2 > Lesson 2.1.5 > Problem 2-56

2-56.

Evaluate each expression to find .  

  1. when

    Substitute in for .

    Multiply and simplify.

  1. when

    Follow the steps in part (a).

    Remember to use the correct Order of Operations.

  1.  when

    Begin by substituting for in the equation.

  1. when

    Rewrite the equation as .