Question

How do I solve this in the easiest and simplest way possible? Please explain step by step as I am new to this

Answer 1

`2^(-2)`

Use the next property for negative exponents:

`a^(-n)=(1)/(a^n)`
`2^(-2)=(1)/(2^2)=(1)/(2*2)=(1)/(4)`

Then, the given expressin is equal to 1/4