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**venkatesh.p58xa****Member**- Registered: 2013-10-15
- Posts: 1

(a - b)^2 x^2 - 4abx - (a-b)^2

solve for x by factorisation method.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,302

Hi venkatesh.p58xa;

The problem is an old one. You have not copied it correctly. It should be

then it can be factored.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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