User guide

3.1.2 Expand
To access the expand command choose Action then Transformation and
then choose expand. If I want to FOIL the expression (x + 1)(x + 3), I can
use the expand command to get x
2
+ 4x + 3.
The more time spent using the calculator, the easier it will be to complete
desired tasks. Understanding of format is very important for this calculator.
The following example will demonstrate the need for proper format:
Example 2. Try to expand the expression x(x + 1)(x + 3) then separately
expand the expression x × (x + 1)(x + 3). Note that one of the expressions
uses a multiplication sign and one does not.
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