Casio fx-991EX - INEQUALITY Mode; Solving Polynomial Inequalities

fx-991EX Quick Start Guide 45
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 coefcients 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.
INEQUALITY