Question

How do you solve `3^(2a)=3^(-a)`?

Answer 1

`a=0`

Explanation:

`3^(2a)=3^(-a)=1/3^a`

i.e. `3^(2a)xx3^a=1=3^0`

or `3^(2a+a)=3^0`

Hence, `3a=0` and `a=0/3=0`