Question

How do you solve `4^x-3=5`?

Answer 1

`x=3/2`

Explanation:

First let's have the equivalent equation

`4^x=8`

Then, since `4=2^2 and 8=2^3`, let's substitute:

`2^(2x)=2^3`

so

`2x=3`

`x=3/2`