Esercizio
$\frac{3x^2-x-5}{x+2}$
Soluzione passo-passo
1
Dividere $3x^2-x-5$ per $x+2$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+2;}{\phantom{;}3x\phantom{;}-7\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+2\overline{\smash{)}\phantom{;}3x^{2}-x\phantom{;}-5\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+2;}\underline{-3x^{2}-6x\phantom{;}\phantom{-;x^n}}\\\phantom{-3x^{2}-6x\phantom{;};}-7x\phantom{;}-5\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n;}\underline{\phantom{;}7x\phantom{;}+14\phantom{;}\phantom{;}}\\\phantom{;\phantom{;}7x\phantom{;}+14\phantom{;}\phantom{;}-;x^n;}\phantom{;}9\phantom{;}\phantom{;}\\\end{array}$
Risposta finale al problema
$3x-7+\frac{9}{x+2}$