Question: show work please ! 9. (4 points) Use derivatives and algebra to find all critical points of the function h(x) =x3 - 3x2 - 9x

show work please !

9. (4 points) Use derivatives and algebra to find all critical points of the function h(x) =x3 - 3x2 - 9x + 5. Show all work. Give its x and y coordinates. Use your calculator only for basic arithmetic

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