CHAPTER 5. HOME SCREEN F-MENUS
5.2.2
2: factor(
”factor(” will factor an expression for you and uses the format
f actor
(
expression
)
.
If you enter in a prime polynomial, the result will simply be the expression you entered.
Example:
Factor
x
2
−
3
x
−
4
. You need to enter
f actor
(
x
2
−
3
x
−
4)
.
Type
, then
.
Example:
Factor
x
2
−
3
x
−
3
. You need to enter
f actor
(
x
2
−
3
x
−
3)
.
Type
, then
.
5.2.3
3: expand(
”expand(” will expand an expression and uses the format
expand
(
expression
)
.
Example:
Expand
7
x
(
x
+ 1)
2
. You need to enter
expand
(7
x
×
(
x
+ 1)
∧
2)
.
Type
, then
.
Between the
7
x
and
(
x
+ 1)
2
, you must insert the multiplication,
.
If you do not include
, then you will receive and error message.
Do not confuse the letter
x
,
, with the multiplication symbol,
.
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