Quadratic And Cubic Equations; Entering The Quadratic/Cubic Equation Mode; Solving A Quadratic Or Cubic Equation - Casio FX-9750G Quick Start Manual

7-3 Quadratic and Cubic Equations

This calculator can also solve quadratic and cubic equations that match the following
formats (when
k k k k k Entering the Quadratic/Cubic Equation Mode
While in the Equation Mode, press 2 (POLY).
k k k k k Solving a Quadratic or Cubic Equation
Press 2 (3) to enter the Cubic Equation Mode.
Input each coefficient.
a
0):
G G G G G
ax 2
• Quadratic: +
ax
• Cubic: 3 +
2(POLY)
1(2) ............. Quadratic equation
2(3) ............. Cubic equation
Example To solve the following cubic equation:
x 3 x
– 2
2(3)
bw-cw
-bwcw
bx c
+ = 0
bx cx d
2 + + = 0
2 x
– + 2 = 0
Cell for input of coefficients
1 2
Value being input into highlighted cell
1 2 3 4 5 6
3 4 5 6
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