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2-11-4
Using Verify
(4) Following the equal sign (=), input 25
×
3 and tap
w
.
(5) Tap [OK] to close the error dialog that appears.
(6) Change 25
×
3 to 25
×
2 and tap
w
.
(7) Following the next equal sign (=), input 5
×
5
×
2 and
tap
w
.
Example 2: To rewrite
x
2
+ 1 in factored form
(1) Tap the left most toolbar icon
E
to begin a new Verify session.
(2) Tap [OK] to clear the window.
(3) Tap the down arrow on the toolbar and select
T
.
(4) Input
x
^2 + 1 and press
E
.
(5) Input (
x
+
i
)(
x
–
i
) and press
E
.