CHAPTER 5. HOME SCREEN F-MENUS
5.2.2 2: factor(
”factor(” will factor an expression for you and uses the format factor(expression).
If you enter in a prime polynomial, the result will simply be the expression you entered.
Example:
Factor x
2
− 3x − 4. You need to enter f actor(x
2
− 3x − 4).
Type , then .
Example:
Factor x
2
− 3x − 3. You need to enter f actor(x
2
− 3x − 3).
Type , then .
5.2.3 3: expand(
”expand(” will expand an expression and uses the format expand(expression).
Example:
Expand 7x(x + 1)
2
. You need to enter expand(7x × (x + 1) ∧ 2).
Type , then .
Between the 7x 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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