Question

equação exponencial
4^x-2 = √64

Answer 1

4ˣ ⁻ ² = √ 64

4ˣ ⁻ ²  = 2³

2²ˣ ⁻ ⁴ = 2³

2x - 4 = 3

2x = 3 + 4

x = 7/2   Resposta.

Answer 2

4^x-2=√64
4^x-2=√4³
4^x-2=4³/²
x-2=3/2
2(x-2)=3
2x-4=3
2x=4+3
2x=7
x=7/2