Question

resolva as equações exponenciais: 16× - 1 = ½
3× = 27
25× = 5²​

Answer 1

16ˣ-¹= ½

2⁴(ˣ-¹) = 2-¹

4(x-1) = -1

4x-4 = -1

4x = -1 +4

4x = 3

x= 3/4

3ˣ = 27

3ˣ = 3³

× = 3

25ˣ = 5²

5²ˣ = 5²

2x = 2

x = 1