Texas Instruments TI-84 Plus Manual Book page 468

6. Press y [ repeatedly until this
quadratic-formula expression is
displayed:
2
– b + b – 4ac
-------------------------------------- -
2a
7. Press Í to find the other solution for
the quadratic equation: 2x
An alternative for solving equations for real numbers is to use the built-in Equation
Note:
Solver.
Chapter 17: Activities
2
N x + 3 = 0.
465