CPM Homework Banner
1-72.

Helen thinks = x. Felicia does not agree. Homework Help ✎

  1. Use various values of x to check whether or not Helen is correct.

    Try evaluating different numbers. Be sure to include positive numbers, negative numbers and fractions.

  2. Write an accurate expression for .

    If both n and −n give you the same value, n, how can we alter Helen's statement to make it true?