(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Factroise equation

2. Relevant equations

3. The attempt at a solution

Can anyone help shopw me the best way to factorise cubic equations? I am doing a question on matrices, and have a 3x3 matrix, which ends up giving me a cubic equation:

[tex] -x^3 +10x^2 - 27x + 18 [/tex]

It should be in the from (-x + a)(x + b)(x + c)

but when I multiply these out, I get a very confusing function that doesn't seem to help:

[tex] abc + (acx - bcx + abx) - (x^2 + ax^2 - bx^2) - x^3 [/tex]

Any ideas for a better way to solve these?

Any help will be most appreciated,

TFM

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# Factorising Cubic Equations

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