Exercice
$\frac{3x^3-2x^2-12x+4}{x-2}$
Solution étape par étape
1
Diviser $3x^3-2x^2-12x+4$ par $x-2$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}-2;}{\phantom{;}3x^{2}+4x\phantom{;}-4\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}-2\overline{\smash{)}\phantom{;}3x^{3}-2x^{2}-12x\phantom{;}+4\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}-2;}\underline{-3x^{3}+6x^{2}\phantom{-;x^n}\phantom{-;x^n}}\\\phantom{-3x^{3}+6x^{2};}\phantom{;}4x^{2}-12x\phantom{;}+4\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}-2-;x^n;}\underline{-4x^{2}+8x\phantom{;}\phantom{-;x^n}}\\\phantom{;-4x^{2}+8x\phantom{;}-;x^n;}-4x\phantom{;}+4\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}-2-;x^n-;x^n;}\underline{\phantom{;}4x\phantom{;}-8\phantom{;}\phantom{;}}\\\phantom{;;\phantom{;}4x\phantom{;}-8\phantom{;}\phantom{;}-;x^n-;x^n;}-4\phantom{;}\phantom{;}\\\end{array}$
$3x^{2}+4x-4+\frac{-4}{x-2}$
Réponse finale au problème
$3x^{2}+4x-4+\frac{-4}{x-2}$