After providing these to the program it will display the solutions on the screen. The Solver in the TI-84 Plus works a little differently. No other programs needed.
This is just one of many ways to do this.
Make sure you use the negative button. This program is designed for the TI-84 Plus CE and TI-84 Plus C Silver Edition graphing calculators. Begin with the program by clearing the home screen and adding inputs for the three coefficients. Finding the Equation Solver.