Răspunsuri

2014-09-20T21:25:14+03:00
 x^{3} -x-2 egal 0
 x^{3} -x egal 2+0
 x^{3} -x egal 2 
si asa ramane
2014-09-20T23:01:09+03:00
 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}