Previews 71
Reducing Expressions
Factoring Polynomials
Steps and keystrokes Display
Reduce the expression (x
2
N2xN5)/(xN1) 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(.
Press „ 7 c X Z 2 | 2 X | 5 d e c X |
1 d d ¸
Steps and keystrokes Display
Factor the polynomial (x
2
N5) 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(.
Press „ 2 X Z 2 | 5 b X d ¸
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