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Cubic Formula: Step-by-Step Solution for Finding x

Thread starter Strafespar
Start date Mar 25, 2010
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Cubic Formula

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Strafespar

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Mar 25, 2010

#1

How would you go about solving [tex]ax^3+bx^2+cd+d=0[/tex] for x. Please step by step! Thanks!

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jbunniii

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Mar 25, 2010

#2

Strafespar said:

How would you go about solving [tex]ax^3+bx^2+cd+d=0[/tex] for x. Please step by step! Thanks!

It's pretty longwinded but standard. See here, for example:

http://en.wikipedia.org/wiki/Cubic_function

Strafespar

Mar 25, 2010

#3

In the [tex]X_{1}[/tex] example, does x=y-b/3a?

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