Inequality - Casio fx-991EX Quick Start Manual

INEQUALITY

Solving polynomial inequalities has never been easier.
From the Main Menu, use the arrow keys to highlight the
Inequality icon and press por press x(B).
Enter the degree of the polynomial inequality, in this case,
3(Degree).
Choose the form of the inequality. Press 2
( ).
Enter the coefficients of the polynomial, as shown.
Press 1p4p1pz6p.
Press p to see the solutions.
Notice, the form of the inequality is written
as x < a, b < x < c.
If the solution runs off the screen, use the left and right (!$)
arrow keys to see the entire solution.
fx-991EX Quick Start Guide 45