Question and Answers Forum

All Questions      Topic List

Integration Questions

Previous in All Question      Next in All Question      

Previous in Integration      Next in Integration      

Question Number 156529 by mnjuly1970 last updated on 12/Oct/21

Answered by mr W last updated on 12/Oct/21

$$f(+\mathrm{\infty })\to +\mathrm{\infty }$$$$f(-\mathrm{\infty })\to +\mathrm{\infty }$$$$$$$$f^{\prime }\left(x\right)=4x^3+6x^2=2x^2(2x+3)=0$$$$x=0,x=-\frac{3}{2}$$$$f\left(0\right)=-5$$$$f(-\frac{3}{2})=\frac{81}{64}-2\times \frac{27}{8}-5=-10\frac{31}{64}$$$$f^{″}\left(x\right)=12x^2+12x=12x(x+1)=0$$$$x=0,x=-1$$$$\Rightarrow 2realroots:one>0,one<-\frac{3}{2}$$

Commented by mr W last updated on 12/Oct/21

Commented by mnjuly1970 last updated on 12/Oct/21

$$gratefulsirW$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com