Răspuns:
Explicație pas cu pas:
4
a) x+3=0 x=-3 nu are solutie in N
b)2x-4=0 x=2 solutie in N
c)3x+1=0 x=-1/3 nu are solutie in N
d)4x-6=0 x=3/2 nu are solutie in N
e)3x-9=0 x=3 solutie in N
f)2x=x x=0 solutie in N
5
a)2x-3=0 x=3/2 nu are solutie in Z
b)3x+3=0 x=-1 solutie in Z
c)4x-8=0 x=2 solutie in Z
d)13x+169=0 x=-13 solutie in Z
e)√3x-3√3=0 x=3 solutie in Z
f)√2x+2√2=0 x=-2 solutie in Z
