1 find fx 2 find the critical points of fx that is find the


Let y=f(x)=?3??1??x?3??-4x?2??+15x+12.

(1) Find f?′??(x).

(2) Find the critical points of f(x), that is, find the zeros of f?′??.

(3) Find the interval where f(x) is increasing or decreasing.

(4) Find the local minimum and maximum of f(x).

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Mathematics: 1 find fx 2 find the critical points of fx that is find the
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