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Casio FX-570ES One Page Exercise:
CUBIC EQUATIONS
>>> Solve the cubic equation of 05255163
23
=−+− xxx .
What To Do The Screen Display
First turn on the calculator, select “EQN” mode and choose to solve for cubic equation.
W
w 5 4
Enter the coefficients and then solve the equation.
3 p z 1 6 p 5 5 p z
5 2 p
p
To see the rest of the solutions press “=” a couple of times.
p
p
The complex solutions can be displayed in polar form as follow.
q w R 3
2
View the other solutions using the up down arrow keys. You can return to the iba
form at set up.
R E
q w R 3 1
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