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Math Help - Factorise x^2 -2x +2

  1. #1
    Rui
    Rui is offline
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    Factorise x^2 -2x +2

    I can't seem to factorise it...
    nvm i got it! lol sorry
    Last edited by Rui; April 4th 2008 at 01:23 AM.
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  2. #2
    Senior Member Peritus's Avatar
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    <br />
\begin{gathered}<br />
  x_{1,2}  = \frac{{2 \pm \sqrt {4 - 8} }}<br />
{2} = 1 \pm \sqrt { - 1}  = 1 \pm j \hfill \\<br />
   \hfill \\<br />
  x^2  - 2x + 2 = \left( {x - 1 + j} \right)\left( {x - 1 - j} \right) \hfill \\ <br />
\end{gathered} <br />
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