# change of concavity

Level pending

Any graph $$y=f(x)$$ has first derivative given by $$y'=6(x+1)(x-2)^2$$ has point/points of inflection at

(1) $$x=0$$
(2). $$x=-1,2$$
(3). $$x=2$$
(4). $$x=0, 2$$

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