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If x=-1 and x=""2 are extreme points of ...

If `x=-1` and `x=""2` are extreme points of `f(x)""=alphalog|x|+betax^2+x` , then (1) `alpha=-6,beta=1/2` (2) `alpha=-6,beta=-1/2` (3) `alpha=2,beta=-1/2` (4) `alpha=2,beta=1/2`

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