### Home > PC3 > Chapter 4 > Lesson 4.3.2 > Problem 4-119

4-119.

Solve the inequalities below and express the solutions in both interval and inequality notation.

The

sign means that the three factors, when multiplied, are positive.

Check a value in each interval to determine the positive intervals.

1. Factor and determine the boundary points.

2. Sketch a number line and test your intervals.