Esercizio
$\frac{x^2-8}{x+1}$
Soluzione passo-passo
1
Dividere $x^2-8$ per $x+1$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+1;}{\phantom{;}x\phantom{;}-1\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+1\overline{\smash{)}\phantom{;}x^{2}\phantom{-;x^n}-8\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+1;}\underline{-x^{2}-x\phantom{;}\phantom{-;x^n}}\\\phantom{-x^{2}-x\phantom{;};}-x\phantom{;}-8\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+1-;x^n;}\underline{\phantom{;}x\phantom{;}+1\phantom{;}\phantom{;}}\\\phantom{;\phantom{;}x\phantom{;}+1\phantom{;}\phantom{;}-;x^n;}-7\phantom{;}\phantom{;}\\\end{array}$
Risposta finale al problema
$x-1+\frac{-7}{x+1}$