Casio fx-9750G Equation Calculations Uživatelský manuál stáhnout pdf (Strana 6)

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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 0):

• Quadratic: ax

+ bx + c = 0

• Cubic:

+ bx

+ cx + d = 0

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 Solving a Quadratic or Cubic Equation

Example To solve the following cubic equation:

– 2x

– x + 2 = 0

Press 2 (3) to enter the Cubic Equation Mode.

2(3)

Input each coefficient.

bw-cw

-bwcw

123456

Value being input into highlighted cell

Cell for input of coefficients

1 2 3 4 5 6 7 8 9

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Casio fx-9750G Equation Calculations Uživatelský manuál Strana 6