Equation - Casio fx-CG50 Quick Start Manual

+
1. The equation 2 2 40
x
+
2
-2
transforming it to x
Press pf(A). (It is not necessary to push
polynomial.
Enter the 3 coefficients, pressing l
when solutions are not rational, both a decimal and an exact
solution are displayed. The third screenshot displays the solutions to .
12
fx-CG50 Quick Start Guide
x =
150 was previously solved in the Graph menu. It can also be solved in the Equation menu by
=
40 -150 0
x .
a.) To solve polynomial equations, press
after each one. Note, equations must be in standard form to solve. To solve, press
E Q U A T I O N
w(POLY). Press q(2) for a second degree
q(SOLVE). Both solutions are displayed. Note,
+ =
2 2 40 160 0
x x