Răspuns :
1. x= -5. x^2= 25
x=-3. x^2= 9
x=-2. x^2= 4
x=0. x^2=0
x=4. x^2=16
x=6. x^2=36
x=9. x^2=81
x=12. x^2=144
x=-3. x^2= 9
x=-2. x^2= 4
x=0. x^2=0
x=4. x^2=16
x=6. x^2=36
x=9. x^2=81
x=12. x^2=144