4-2-2

Quadratic and Cubic Equations

Example

To solve the cubic equation (Angle unit = Rad)

 

x3 – 2x2 – x + 2 = 0

Procedure

1m EQUA

22(POLY)

2(3)

3bw-cw-bwcw

41(SOLV)

Result Screen

Multiple Solutions (Example: x3 + 3x2 + 3x + 1 = 0)

Complex Number Solution (Example: x3 + 2x2 + 3x + 2 = 0) Complex Mode: Real (page 1-7-2)

Complex Mode: a + bi

Complex Mode: r∠θ

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