Casio Classwiz - Using a stored value of x in an equation

How to solve a quadratic equation on a Casio calculator FX 82ES Plus - Quora

Finding Probabilities For The Normal Distribution On Casio Classwiz fx-991EX fx-570EXThe Calculator G…

Casio FX-300ESPLUS2 Scientific Calculator, Natural Textbook Display, Black

Ti-84 Calculator - 14 - Using the Equation Solver - TI-84 Calculator Tutor - Math Tutor Public Gallery

CASIO fx-991EX

Is the Casio FX-991EX ClassWiz a graphing calculator? - Quora

Casio fx-991EX classWiz user manual and commands.

CSOFX991EX - FX-991EX Advanced Scientific Calculator : Office Products

Noob here again. Why am I getting this answer. I know the answer is x=2.4 or 2 2/5 : r/calculators

How can I stop my casio fx991ex calculator from giving me answers in scientific notions? : r/calculators