Question 1098779
{{{df/dx=2x-2(-1)(1/x)^2}}}

{{{df/dx=2x+2/x^2}}}



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{{{x=-1}}}:
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{{{2x+2/x^2}}}
{{{2(-1)+2/(-1)^2}}}

{{{-2+2}}}

{{{highlight(0)}}}-----------rate of change when x is NEGATIVE 1.