hp40g+.book Page 15 Friday, December 9, 2005 1:03 AM
Press 
to obtain the an intermediate result (42 – 4)
and 
again to evaluate the intermediate result. The final answer is 12.
Second option: arguments first, then function
Enter your expression, using the rules of selection described earlier.
2 
4 
The entire expression is now selected.
Now press 
and select FACTOR. Notice that the FACTOR is applied to whatever was selected (which is automatically placed in parentheses).
Press 
to evaluate the expression. The result is the factors of the expression.
Because the result of an evaluation is always
selected, you can immediately apply another command to it.
To illustrate this, press
, select SUBST and
then press 
or 
. Note that SUBST is applied to whatever was selected (which is automatically
placed in parentheses). Note too that the cursor is automatically placed in the position of the second argument.
Enter the second argument, x=4.
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