Texas Instruments TI-84 - Manual (Page 466)

Chapter 17: Activities 463
Displaying Complex Results Displaying Complex Results Displaying Complex Results Displaying Complex Results
Now solve the equation 2x
2
N x + 3 = 0. When you set
a+bi complex number mode, the
TI-84 Plus displays complex results.
5. Press
} to move the cursor onto the
+
sign in the formula. Press
¹ to edit the
quadratic-formula expression to become:
6. Press
Í to find the other solution for
the quadratic equation 3x
2
+ 5x + 2 = 0.
1. Press
z † † † † † † (6 times),
and then press
~ to position the cursor
over a+bi . Press
Í to select
a+bi
complex-number mode.
b – b
2
4ac – –
2a
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