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Statement 1: The function f(x)=x^4-8x^3+...

Statement 1: The function `f(x)=x^4-8x^3+22 x^2-24 x+21` is decreasing for every `x in (-oo,1)uu(2,3)` Statement 2: `f(x)` is increasing for `x in (1,2)uu(3,oo)` and has no point of inflection.

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