Question

Resolva as seguintes equações exponenciais
A)2^x=64
B)1/27=3^
C)(0,5)^x=4^1-3x
D)64.2^x-1=0

Answer 1

a)2^x=64
2^x=2^6
x=6

b)1/27=3^x
1/3^3=3^x
3^-3=3^x
x=-3

d)64-2^x-1=0
2^6-2^x-1=0
6+x-1=0
6-1+x=0
5+x=0
x=-5