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Question Number 119204 by J2 last updated on 22/Oct/20

$$40-\mathrm{misolning}\mathrm{yechimi}:$$$$\mathrm{y}=\frac{{\mathrm{x}}^3}{3}+{2\mathrm{x}}^2-5\mathrm{x}+7$$$$\mathrm{Kritik}\mathrm{nuqtalarini}\mathrm{topish}\mathrm{uchun}:$$$$1.\mathrm{Funksiyadan}\mathrm{hosila}\mathrm{olamiz}$$$$2.\mathrm{Funksiya}\mathrm{hosilasini}\mathrm{nolga}\mathrm{tenglab},$$$$\mathrm{tenglamani}\mathrm{yechamiz}.$$$${\mathrm{y}}^{\prime }={\mathrm{x}}^2+4\mathrm{x}-5=0\Rightarrow {\mathrm{x}}_1=1;{\mathrm{x}}_2=-5$$$${\mathrm{x}}_1+{\mathrm{x}}_2=1-5=-4\mathrm{Javob}:-4$$

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