Section 4 Category 24

Example 1 - no calculation required

The points where the graph passes through the x-axis or touches the x-axis can be directly read from the graph. Passes through = 1 factor. Touches and curves back = 2 identical factors.


Example 2 - no calculation required

Each factor is a distinct zero. Count them.


Example 3 - no calculation required

From the x column read the values where h(x) = 0.