Casio fx-CG10 PRIZM Quick Reference Manual page 12

EQUATION
+ 40x = 150
2
The equation was previously solved in the Graph menu. It can also be solved in the Equation menu
−2x
-2x + 40x -150 = 0
2
by transforming it to .
Press pf(A). (It is not necessary to push a.) To solve polynomial equations, press w(POLY).
Press q(2) for a second degree polynomial.
Enter the 3 coefficients, pressing after each one. Note, equations must be in standard form to solve. To solve,
l
press q(SOLVE). Both solutions are displayed. Note, when solutions are not rational, both a decimal and an exact
+ 40x −160 = 0
2
solution are displayed. The third screenshot displays the solutions to .
−2x
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Getting Started with the fx-CG10