Peytondunsmore
Peytondunsmore
23-11-2014
Mathematics
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Factorise x^2+6x-7 ?? Help please
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konrad509
konrad509
23-11-2014
[tex]x^2+6x-7=\\ x^2-x+7x-7=\\ x(x-1)+7(x-1)=\\ (x+7)(x-1)[/tex]
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