Ontbinden in factoren

$\eqalign{ & 3x^2 - 2x - 1 = 0 \cr & 3x^2 + x - 3x - 1 = 0 \cr & x(3x + 1) - (3x + 1) = 0 \cr & (x - 1)(3x + 1) = 0 \cr & x = 1 \vee 3x = - 1 \cr & x = 1 \vee x = - \frac{1} {3} \cr}$

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• Re: Re: Punten raaklijn vinden

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