•Any time until you input a value for the final coefficient (c for a quadratic equation, d for a cubic equation), you can use the [ and ] keys to move between coefficients on the screen and make changes, if you want.

•Note that you cannot input complex numbers for co- efficients.

Calculation starts and one of the solutions appears as soon as you input a value for the final coefficient.

Variable name

 

 

Arrow indicates

 

 

 

 

 

 

direction you

 

 

 

 

 

 

should scroll to

 

x 1=

 

 

view other

 

0.

 

 

solutions.

 

 

 

 

 

 

 

Solution

Press the ]key to view other solutions. Use [and ] to scroll between all of the solutions for the equation. Pressing the tkey at this point returns to the coefficient input screen.

•Certain coefficients can cause calculation to take more time.

•Example 1: To solve the equation

x3 – 2x2 – x + 2 = 0 (x = 2, –1, 1)

(Degree?) 3

(a?)

1 =

(b?)

D 2 =

(c?)

D 1 =

(d?)

2 =

(x1

= 2)

]

(x2

= –1)

]

(x3

= 1)

 

•If a result is a complex number, the real part of the first solution appears first. This is indicated by the “R↔I” symbol on the display. Press Arto toggle the display between the real part and imaginary part of a solution.

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