Texas Instruments PLUS TI-89 - Manual (Page 26)

Chapter 1: Getting Started 9
01START DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 9 of 12
Steps
³
TI . 89
Keystrokes
›
TI . 92 Plus
Keystrokes Display
Expanding Expressions
1. Expand the expression (x ì 5) 3 .
You can enter “expand” on the entry
line by typing EXPAND on the
keyboard, or by pressing
„ and
selecting 3:expand(.
2. (Optional) Enter other
expressions on your own.
„ 3
c X | 5 d Z 3
d
¸ „ 3
c X | 5 d Z 3
d
¸
Reducing Expressions
1. Reduce the expression
(x 2 ì 2x ì 5)/(x ì 1) to its simplest
form.
You can enter “propFrac” on the entry
line by typing PROPFRAC on the
keyboard, or by pressing
„ and
selecting 7:propFrac(.
„ 7
c X Z 2 | 2 X
| 5 d e
c X | 1 d d
¸ „ 7
c X Z 2 | 2 X
| 5 d e
c X | 1 d d
¸
Factoring Polynomials
1. Factor the polynomial (x 2 ì 5)
with respect to x .
You can enter “factor” on the entry
line by typing FACTOR on the
keyboard or by pressing
„ and
selecting 2:factor(.
„ 2
X Z 2 | 5
b X d
¸ „ 2
X Z 2 | 5
b X d
¸
Solving Equations
1. Solve the equation x 2 ì 2x ì 6=2
with respect to x .
You can enter “solve(” on the entry
line by selecting “solve(” from the
Catalog menu, by typing SOLVE( on
the keyboard, or by pressing
„ and
selecting 1:solve(.
The status line area shows the
required syntax for the marked item
in the Catalog menu.
„ 1
X Z 2 | 2 X | 6
Á 2 b X d
¸ „ 1
X Z 2 | 2 X | 6
Á 2 b X d
¸