Question

rezolvati  ecuatia : x³+x-2x-2=0

Answer 1

$x^{3}$-x-2 egal 0
$x^{3}$-x egal 2+0
$x^{3}$-x egal 2 
si asa ramane

Answer 2

$x^{3}$-x-2=0
x($x^{2}$-1)=2
pt x=1 => $x^{2}$-1=2 => $x^{2}$=3 => x=$\sqrt{3}$
pt x=2 => $x^{2}$-1=1 => $x^{2}$=2 => x=$\sqrt{x}$