Step 1 If you just got a brand new TI-84 take it out of the boxStep 2 Take off the back piece and place four AAA batteries into the calculatorStep 3 Slide it back into it the case. The advantage of using this technique is your cursor stays on the base of the Entry line see the first screen. Using the Equation Solver or the Solve function on your TI-84 Plus calculator works pretty well for linear or quadratic equations.
The two boxes that are displayed represent the two sides of the equation.
One way is to type a number and press x2. This app is truly multi-dimensional. TI-84 Plus Calculators Equation Solver Enter a new equation in the Equation Solver. Before you start using TI 84 Plus there is just one thing that you need to adjust.