Esercizio
$\frac{2x^3-3x+1}{x+2}$
Soluzione passo-passo
1
Dividere $2x^3-3x+1$ per $x+2$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+2;}{\phantom{;}2x^{2}-4x\phantom{;}+5\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+2\overline{\smash{)}\phantom{;}2x^{3}\phantom{-;x^n}-3x\phantom{;}+1\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+2;}\underline{-2x^{3}-4x^{2}\phantom{-;x^n}\phantom{-;x^n}}\\\phantom{-2x^{3}-4x^{2};}-4x^{2}-3x\phantom{;}+1\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n;}\underline{\phantom{;}4x^{2}+8x\phantom{;}\phantom{-;x^n}}\\\phantom{;\phantom{;}4x^{2}+8x\phantom{;}-;x^n;}\phantom{;}5x\phantom{;}+1\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n-;x^n;}\underline{-5x\phantom{;}-10\phantom{;}\phantom{;}}\\\phantom{;;-5x\phantom{;}-10\phantom{;}\phantom{;}-;x^n-;x^n;}-9\phantom{;}\phantom{;}\\\end{array}$
$2x^{2}-4x+5+\frac{-9}{x+2}$
Risposta finale al problema
$2x^{2}-4x+5+\frac{-9}{x+2}$