Question

cum se descompune x^3+x+2 ?

Answer 1

$x^{3}+x+2=x^3+1+x+1=(x+1)( x^{2} -x+1)+(x+1)= \\ =(x+1)( x^{2} -x+1+1)=(x+1)( x^{2} -x+2)$