Răspuns:
1 a) x=5;x=-5
b) x=3;x=-3
c) x=1;x=-1
d) x=10;x=-10;
2 a) x=0
b) x=[tex]\sqrt{6}[/tex]
c) x=[tex]\sqrt{18}[/tex]
d) x=[tex]\sqrt{72}[/tex]
3 a) x=[tex]\frac{12}{\sqrt{10} }[/tex];x=[tex]\frac{-12}{\sqrt{10} }[/tex]
b) x=0.6;x=-0.6
c) x=0,3;x=-0,3;
d) x=1,1;x=-1,1
Explicație pas cu pas:
