If x = -1 and x = 2 are extreme points o...

If x = -1 and x = 2 are extreme points of :
`f(x)=alpha log|x|+beta x^(2)+x`, then :

A

`alpha =-6, beta= 1/2`

B

`alpha =-6, beta= -1/2`

C

`alpha =2, beta= -1/2`

D

`alpha =2, beta=1/2`

Verified by Experts

The correct Answer is:

C

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