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Extremum, Increase and Decrease sections – Extremum to a polynomial function in a closed interval – Exercise 6872

Determine the absolute extrema for the following function

$f(x)=x^3+3x^2-72x+90$

On the closed interval

$[-5,5]$

Final Answer

$\max_{[-5,5]}f(x)=f(-5)=400$

$\min_{[-5,5]}f(x)=f(4)=-86$

Coming soon…

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