Question

Question #553c3

Answer 1

`x=4`

Explanation:

You would apply the following property :

`a^(m+n)=a^m*a^n`

and get:

`color(red)(2^(x+2))-2^x=48->color(red)(2^x*2^2)-2^x=48`

`->4*2^x-2^x=48`

`->3*2^x=48`

`->2^x=16`

`->2^x=2^4`

`->x=4`