Răspuns:
3
Explicație pas cu pas:
[tex]\displaystyle{ 2^{3x+2} = 4^{10} }[/tex]
[tex]\displaystyle{ 2^{3x+2} = (2^{2})^{10} }[/tex]
[tex]\displaystyle{ 2^{3x+2} = 2^{20} }[/tex]
[tex]\displaystyle{ 3x + 2 = 20 }[/tex]
[tex]\displaystyle{ 3x = 20 - 2 }[/tex]
[tex]\displaystyle{ 3x = 18 }[/tex]
[tex]\displaystyle{ x = 18 : 3 }[/tex]
[tex]\boxed{x=3}[/tex]
