Question

Evaluate x^1-x^-1+ x^º for x= 2.

Answer 1

`\boxed{(5)/(2) }`

Explanation:

=>
`x - x^(-1) + x^0`

Rule of exponents
`x^0 = 1`

For x = 2

=> 2 -
`(2)^(-1)` + 1

=> 5 / 2

=>
`(5)/(2)`

Answer 2

5/2

Explanation:

Step 1: Plug in x

2¹ - 2^-1 + 2⁰

Step 2: Evaluate

2 - 1/2 + 1

3/2 + 1

5/2