In other words not all calculator has the function of solving for x. Solving equations is possible with the equation solver in the fx-991ES PLUS or fx-991EX calculators shift-solve functionality. Use or to move between the cells.
1 to factor the quadratic equation if you can do so 2 to use the quadratic formula or 3 to complete the square.
The roots will be shown on screen. Handling Precautions Be sure to press the 5 key before using the calcu-lator for the first time. A quadratic equation is a polynomial equation in a single variable where the highest exponent of the variable is 2. The roots will be shown on screen.