WeBWorK using host: https://math-webwork3.unl.edu, format: simple seed: 123567890

This is similar to Problem 4 from your Section 2.2 worksheet.

By setting up an appropriate inequality and solving it, determine for what values of the expression will be (a) positive, (b) negative, and (c) zero. Write your solution in interval notation. If an interval uses infinity, type "INF".