Esercizio
$\frac{x^2-15x+25}{x+5}$
Soluzione passo-passo
1
Dividere $x^2-15x+25$ per $x+5$
$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+5;}{\phantom{;}x\phantom{;}-20\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+5\overline{\smash{)}\phantom{;}x^{2}-15x\phantom{;}+25\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+5;}\underline{-x^{2}-5x\phantom{;}\phantom{-;x^n}}\\\phantom{-x^{2}-5x\phantom{;};}-20x\phantom{;}+25\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+5-;x^n;}\underline{\phantom{;}20x\phantom{;}+100\phantom{;}\phantom{;}}\\\phantom{;\phantom{;}20x\phantom{;}+100\phantom{;}\phantom{;}-;x^n;}\phantom{;}125\phantom{;}\phantom{;}\\\end{array}$
$x-20+\frac{125}{x+5}$
Risposta finale al problema
$x-20+\frac{125}{x+5}$