Răspuns :
a). 3ˣ < 29 => 3ˣ = { 3⁰=1; 3¹=3; 3²=9; 3³=27 }
deci x = {0; 1; 2; 3}
b) 4ˣ = 1 => 4ˣ = { 4⁰=1 }
deci x = {0}
deci x = {0; 1; 2; 3}
b) 4ˣ = 1 => 4ˣ = { 4⁰=1 }
deci x = {0}