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A cubic f(x) vanishes at x= -2 and has ...

A cubic f(x) vanishes at x= -2 and has relative minimum and maximum at x = -1 and `x=1/3ifoverset(1)underset(-1)(int)f(x)dx=14/3` find the cubic f(x)

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`f(x)=x^3+x^2-x+2`
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