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Home > CCA > Chapter A > Lesson A.1.2 > Problem A-18

A-18.

Remember that one meaning of the word “evaluate” is to replace a variable with a number and to calculate the result. For example, evaluating the expression when gives the solution.

Evaluate the expressions below for the given values. Homework Help ✎

  1. Substitute −1 for d.

    Simplify the terms and combine them.

    7

  1. Follow the steps in part (a).

    Put everything you substituted inside parentheses so you do not lose your negative signs.

  1. Follow the steps in part (a).

    −2

  1. Follow the steps in part (a).