Umm from memory I used to use....that triangle:(adsbygoogle = window.adsbygoogle || []).push({});

1

1 1

1 2 1

1 3 3 1

Fibonachii was it? Pathetic I can't even remember the name.

To factorise.....or was it expand...polynomials.....anyway, I don't think that's elevant here.

My question is; I had an equation and it boild down to:

3R^2 + A*R - y*B - C*y^2 = 0

where A, B and C are constants.

Did I have to do completing the squares or some factorisation to find howRis proportional toy?

Thanks

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# Can't remember how to solve equation with two variables

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