Solve the following expressions.
`(2^2 + 2^3 + 2^-2 + 2^-3) `

Explanation

To solve the expression \(2^2 + 2^3 + 2^{-2} + 2^{-3}\), we will follow these steps:

### Step 1: Calculate the positive powers of 2
First, we need to evaluate the positive powers of 2 in the expression:
- \(2^2 = 4\)
- \(2^3 = 8\)

### Step 2: Convert the negative powers to positive
...