3 quadratic and cubic equations, Kentering the quadratic/cubic equation mode, Ksolving a quadratic or cubic equation – Casio fx-9750G Equation Calculations User Manual
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7-3 Quadratic and Cubic Equations
This calculator can also solve quadratic and cubic equations that match the following
formats (when
a
G
G
G
G
G
0):
• Quadratic:
ax
2
+
bx
+
c
= 0
• Cubic:
ax
3
+
bx
2
+
cx
+
d
= 0
k
k
k
k
k
Entering the Quadratic/Cubic Equation Mode
While in the Equation Mode, press
2
(POLY).
2
(POLY)
1
(2) ............. Quadratic equation
2
(3) ............. Cubic equation
k
k
k
k
k
Solving a Quadratic or Cubic Equation
Example
To solve the following cubic equation:
x
3
– 2
x
2
–
x
+ 2 = 0
Press
2
(3) to enter the Cubic Equation Mode.
2
(3)
Input each coefficient.
bw-cw
-bwcw
1 2
3 4 5 6
1
2 3 4 5 6
Value being input into highlighted cell
Cell for input of coefficients
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