Question

Calcule o valor de x.
a) log5x=4/3
B) log4(2x-1)=1/2
C) logx 8=2
D) logx5=1/2

Answer 1

A) 
Log x base 5 = 4/3
X=5^4/3

B)
2x-1=4^1/2
2x-1=2
2x=2+1
2x=3
x=3/2

C) logx base 8 =2
x²=8
X=√8 

D) log 5 base x =1/2
5=x^1/2
5²=x
X=25