Exercice
$\frac{7x^3-x+2}{x+2}$
Solution étape par étape
1
Diviser $7x^3-x+2$ par $x+2$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+2;}{\phantom{;}7x^{2}-14x\phantom{;}+27\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+2\overline{\smash{)}\phantom{;}7x^{3}\phantom{-;x^n}-x\phantom{;}+2\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+2;}\underline{-7x^{3}-14x^{2}\phantom{-;x^n}\phantom{-;x^n}}\\\phantom{-7x^{3}-14x^{2};}-14x^{2}-x\phantom{;}+2\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n;}\underline{\phantom{;}14x^{2}+28x\phantom{;}\phantom{-;x^n}}\\\phantom{;\phantom{;}14x^{2}+28x\phantom{;}-;x^n;}\phantom{;}27x\phantom{;}+2\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n-;x^n;}\underline{-27x\phantom{;}-54\phantom{;}\phantom{;}}\\\phantom{;;-27x\phantom{;}-54\phantom{;}\phantom{;}-;x^n-;x^n;}-52\phantom{;}\phantom{;}\\\end{array}$
$7x^{2}-14x+27+\frac{-52}{x+2}$
Réponse finale au problème
$7x^{2}-14x+27+\frac{-52}{x+2}$