Question

Calcula la siguiente logaritmo:
 log32 / log2
Halla el valor de x
Log 6 (4(X-1))=2
log 8 (2(x3 + 5))= 2
log x 25= -2

Answer 1

 log32 / log2 
log32-log2
-----------------------------
Halla el valor de x
Log 6 (4(X-1))=2
6^2=4x-4
36=4x-4
32=4x
x=8
-------------------
log 8 (2(x3 + 5))= 2
8^2=2x^3+10
64=2x^3+10
x^3=27
x=3
--------------------------

log x 25= -2
x^-2=25
1/x^2=25
x=1/5