Răspunsuri

2014-03-28T14:22:26+02:00
(x+1) supra x = 2=>x+1=2x=>1=2x-x=>x=1
(x^3+1)/x^3 = (1+1)/1 = 2
X^3 inseamna x la a treia
1 2 1
2014-03-28T15:01:27+02:00
Daca x+1/x=2        atunci   x³+1/x³=  (x+1/x)³=2³=8 asadar x³+1/x³=8      am  inlocuit cred ca iti dai seama