Texas Instruments TI-83 Manual Book page 548

4. Press y [ to recall the store instruction,
and then press y [ again to recall the
quadratic-formula expression,
b b 4 ac
2
2 a
5. Press Í to find one solution for the
equation 2X
6. Press y [ repeatedly until this quadratic-
formula expression is displayed:
b b 4 ac
2
2 a
7. Press Í to find the other solution for the
quadratic equation: 2X
Note: An alternative for solving equations for real numbers is to use the built-in
Equation Solver (Chapter 2).
TI-83 Plus Activities
2
N X + 3 = 0.
2
N X + 3 = 0.
545