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December 21, 2014

Homework Help: Polynomials help

Posted by Aoi on Friday, June 19, 2009 at 8:45am.

Hello, this is a question which i dont know how to do.

Find the value of k for which a-3b is a factor of a^4-7a^2b^2 + kb^4
Hence, for this value of k, factorise a^4 - 7a^2b^2 + kb^4 completely.

I tried to do long division for the question, but couldnt. Is there any other methods?

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