How do you solve log 4x = 2?

2 Answers
Jun 26, 2018

Rewrite in in exponential form!

Explanation:

Note that logarithms with a base of 10 (log_10 x) are commonly rewritten without it (logx).

log_a b=x is the same as a^x=b. Let's apply this to our equation:

log_10 4x=2
10^2=4x
100=4x
25=x

Hope this helped!

Jun 26, 2018

x = 25

Explanation:

log(4x)= 2
Since the base is not mentioned we assume it to be 10.
4x=10^2
x=100/4=25