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Student Support Forum: 'Forcing polynomial to perfect cubic' topicStudent Support Forum > General > "Forcing polynomial to perfect cubic"

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Sownak
07/23/12 07:00am

Hi all,

I have an expression that looks like
a (3 x^2 + \[Lambda] - 2 x (1 + \[Lambda])) +
x (x^2 + 3 \[Lambda] - 2 x (1 + \[Lambda]))

and I want to find the values of 'a' and \[Lambda] that makes it a perfect cubic (i.e., can be factored as (x-b)^3)

I think you need to use FindInstance for this, but can't quite work out how... any help please?

Thanks,
Sownak

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Subject (listing for 'Forcing polynomial to perfect cubic')
Author Date Posted
Forcing polynomial to perfect cubic Sownak 07/23/12 07:00am
Re: Forcing polynomial to perfect cubic Bill Simpson 07/23/12 12:14pm
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