Question

resolva as equoaçãoes

Answer 1

a)2ˣ = 8

2ˣ = 2³ →  x = 3

b)3ˣ ⁺ ² = 9

3ˣ ⁺ ² = 3²

x + 2 = 2

x = 2 - 2   →  x = 0

c) ( 10²)ˣ ⁻ ¹ = 100

10²ˣ ⁻² = 10²

2x - 2 = 2

2x = 2 + 2

x = 4/2   →   x = 2