Texas Instruments TI-89 Manuale Utente

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Symbolic Manipulation
 259
Factoring and Expanding Polynomials
Factoring and Expanding Polynomials
Factoring and Expanding Polynomials
Factoring and Expanding Polynomials
Use the 
factor
 (
2
) and 
expand
 (
3
) functions.
Finding Prime Factors of a Number
Finding Prime Factors of a Number
Finding Prime Factors of a Number
Finding Prime Factors of a Number
The 
factor
 (
2
) function lets you do more than simply factor an algebraic polynomial.
Factor 
x
5
 
N
 1
. Then expand the result.
Notice that 
factor
 and 
expand
 perform 
opposite operations.
You can find prime factors of a rational 
number (either an integer or a ratio of 
integers).
factor(expression
 [,
var
]
)
for factoring with respect to a variable
expand(expression
 [,
var
]
)
for partial expansion with respect to a 
variable