Question

Question #aef8a

Answer 1

`y^((4)) = 24x^-5 = 24/x^5`

Explanation:

Find the Fourth derivative:
`y = 2x^2 + x-1 + 1/x = 2x^2 + x-1 + x^(-1)`
`y' = 4x + 1 -x^(-2) = 4x + 1 -1/x^2`
`y'' = 4 +2x^-3 = 4+2/x^3`
`y''' = -6x^-4 = -6/x^4`
`y^((4)) = 24x^-5 = 24/x^5`