How do you solve for log_9 27 = x?

2 Answers

It is

x=log_9 27=log_9 3^3=3*log3/log9=3*(log3/log3^2)=3/2

Finally x=3/2

Nov 25, 2015

I found: x=3/2

Explanation:

We can use the definition of log:
log_bx=a->x=b^a
and write:
27=9^x that we can write as:

3^3=3^(2x)
for the two terms to be equal also the exponents must be equal, so:
3=2x
and:
x=3/2