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Question Number 211402 by efronzo1 last updated on 08/Sep/24

Answered by A5T last updated on 08/Sep/24

$$Q211029,wecanfindapolynomialf\left(x\right)$$$$f\left(x\right)=x^n\underset{-}{+}1$$$$f\left(3\right)=28\Rightarrow f\left(x\right)=x^3+1$$$$(x^3+1)(\frac{1}{x^3}+1)=(x^3+1)+(\frac{1}{x^3}+1)$$$$\Rightarrow f(-2)+f(-\frac{1}{2})=-\left(6\frac{1}{8}\right)=-\frac{49}{8}$$

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