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Question Number 129523 by abdurehime last updated on 19/Jan/21

f(x)=x^3 −3x^2 −24x+7 then find  A.critical number  B.interval on w/c f is increasing and decreasing   C.extreme values    show all steps

$$\mathrm{f}\left(\mathrm{x}\right)=\mathrm{x}^{\mathrm{3}} −\mathrm{3x}^{\mathrm{2}} −\mathrm{24x}+\mathrm{7}\:\mathrm{then}\:\mathrm{find} \\ $$$$\mathrm{A}.\mathrm{critical}\:\mathrm{number} \\ $$$$\mathrm{B}.\mathrm{interval}\:\mathrm{on}\:\mathrm{w}/\mathrm{c}\:\mathrm{f}\:\mathrm{is}\:\mathrm{increasing}\:\mathrm{and}\:\mathrm{decreasing}\: \\ $$$$\mathrm{C}.\mathrm{extreme}\:\mathrm{values} \\ $$$$\:\:\mathrm{show}\:\mathrm{all}\:\mathrm{steps} \\ $$

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