a)
[tex]8 = {2}^{3} \\ x + 1 = 3 \\ x = 2[/tex]
b)
[tex]121 = {11}^{2} \\ 2 \times x = 2 \\ x = 1[/tex]
c)
[tex]10.000 = {10}^{4} [/tex]
d)
[tex] {3}^{x} = 81 \\ {3}^{4} = 81 \\ x = 4[/tex]
e)
[tex]81 = {9}^{x + 2} \\ 81 = {9}^{2} \\ x = 2[/tex]
f)
[tex]625 = {5}^{3x + 1} \\ 625 = {5}^{4} \\ x = 1[/tex]
[tex]sper \: ca \: te - am \: ajutat \: si \: bafta \: in \: contiuare[/tex]
Coroniță ? :)
